128400480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^3$

素因数の和:91

約数の個数: 288

約数和(自身を含む): 498083040

約数和(自身を除く): 369682560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 19, 20, 24, 26, 30, 32, 36, 38, 39, 40, 45, 48, 52, 57, 60, 65, 72, 76, 78, 80, 90, 95, 96, 104, 114, 117, 120, 130, 144, 152, 156, 160, 171, 180, 190, 195, 208, 228, 234, 240, 247, 260, 285, 288, 304, 312, 342, 360, 361, 380, 390, 416, 456, 468, 480, 494, 520, 570, 585, 608, 624, 684, 720, 722, 741, 760, 780, 855, 912, 936, 988, 1040, 1083, 1140, 1170, 1235, 1248, 1368, 1440, 1444, 1482, 1520, 1560, 1710, 1805, 1824, 1872, 1976, 2080, 2166, 2223, 2280, 2340, 2470, 2736, 2888, 2964, 3040, 3120, 3249, 3420, 3610, 3705, 3744, 3952, 4332, 4446, 4560, 4680, 4693, 4940, 5415, 5472, 5776, 5928, 6240, 6498, 6840, 6859, 7220, 7410, 7904, 8664, 8892, 9120, 9360, 9386, 9880, 10830, 11115, 11552, 11856, 12996, 13680, 13718, 14079, 14440, 14820, 16245, 17328, 17784, 18720, 18772, 19760, 20577, 21660, 22230, 23465, 23712, 25992, 27360, 27436, 28158, 28880, 29640, 32490, 34295, 34656, 35568, 37544, 39520, 41154, 42237, 43320, 44460, 46930, 51984, 54872, 56316, 57760, 59280, 61731, 64980, 68590, 70395, 71136, 75088, 82308, 84474, 86640, 88920, 89167, 93860, 102885, 103968, 109744, 112632, 118560, 123462, 129960, 137180, 140790, 150176, 164616, 168948, 173280, 177840, 178334, 187720, 205770, 211185, 219488, 225264, 246924, 259920, 267501, 274360, 281580, 308655, 329232, 337896, 355680, 356668, 375440, 411540, 422370, 445835, 450528, 493848, 519840, 535002, 548720, 563160, 617310, 658464, 675792, 713336, 750880, 802503, 823080, 844740, 891670, 987696, 1070004, 1097440, 1126320, 1234620, 1337505, 1351584, 1426672, 1605006, 1646160, 1689480, 1783340, 1975392, 2140008, 2252640, 2469240, 2675010, 2853344, 3210012, 3292320, 3378960, 3566680, 4012515, 4280016, 4938480, 5350020, 6420024, 6757920, 7133360, 8025030, 8560032, 9876960, 10700040, 12840048, 14266720, 16050060, 21400080, 25680096, 32100120, 42800160, 64200240, 128400480]

約数ペア:

[(1, 128400480), (2, 64200240), (3, 42800160), (4, 32100120), (5, 25680096), (6, 21400080), (8, 16050060), (9, 14266720), (10, 12840048), (12, 10700040), (13, 9876960), (15, 8560032), (16, 8025030), (18, 7133360), (19, 6757920), (20, 6420024), (24, 5350020), (26, 4938480), (30, 4280016), (32, 4012515), (36, 3566680), (38, 3378960), (39, 3292320), (40, 3210012), (45, 2853344), (48, 2675010), (52, 2469240), (57, 2252640), (60, 2140008), (65, 1975392), (72, 1783340), (76, 1689480), (78, 1646160), (80, 1605006), (90, 1426672), (95, 1351584), (96, 1337505), (104, 1234620), (114, 1126320), (117, 1097440), (120, 1070004), (130, 987696), (144, 891670), (152, 844740), (156, 823080), (160, 802503), (171, 750880), (180, 713336), (190, 675792), (195, 658464), (208, 617310), (228, 563160), (234, 548720), (240, 535002), (247, 519840), (260, 493848), (285, 450528), (288, 445835), (304, 422370), (312, 411540), (342, 375440), (360, 356668), (361, 355680), (380, 337896), (390, 329232), (416, 308655), (456, 281580), (468, 274360), (480, 267501), (494, 259920), (520, 246924), (570, 225264), (585, 219488), (608, 211185), (624, 205770), (684, 187720), (720, 178334), (722, 177840), (741, 173280), (760, 168948), (780, 164616), (855, 150176), (912, 140790), (936, 137180), (988, 129960), (1040, 123462), (1083, 118560), (1140, 112632), (1170, 109744), (1235, 103968), (1248, 102885), (1368, 93860), (1440, 89167), (1444, 88920), (1482, 86640), (1520, 84474), (1560, 82308), (1710, 75088), (1805, 71136), (1824, 70395), (1872, 68590), (1976, 64980), (2080, 61731), (2166, 59280), (2223, 57760), (2280, 56316), (2340, 54872), (2470, 51984), (2736, 46930), (2888, 44460), (2964, 43320), (3040, 42237), (3120, 41154), (3249, 39520), (3420, 37544), (3610, 35568), (3705, 34656), (3744, 34295), (3952, 32490), (4332, 29640), (4446, 28880), (4560, 28158), (4680, 27436), (4693, 27360), (4940, 25992), (5415, 23712), (5472, 23465), (5776, 22230), (5928, 21660), (6240, 20577), (6498, 19760), (6840, 18772), (6859, 18720), (7220, 17784), (7410, 17328), (7904, 16245), (8664, 14820), (8892, 14440), (9120, 14079), (9360, 13718), (9386, 13680), (9880, 12996), (10830, 11856), (11115, 11552)]