28007520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 192

約数和(自身を含む): 96526080

約数和(自身を除く): 68518560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 37, 38, 40, 48, 57, 60, 74, 76, 80, 83, 95, 96, 111, 114, 120, 148, 152, 160, 166, 185, 190, 222, 228, 240, 249, 285, 296, 304, 332, 370, 380, 415, 444, 456, 480, 498, 555, 570, 592, 608, 664, 703, 740, 760, 830, 888, 912, 996, 1110, 1140, 1184, 1245, 1328, 1406, 1480, 1520, 1577, 1660, 1776, 1824, 1992, 2109, 2220, 2280, 2490, 2656, 2812, 2960, 3040, 3071, 3154, 3320, 3515, 3552, 3984, 4218, 4440, 4560, 4731, 4980, 5624, 5920, 6142, 6308, 6640, 7030, 7885, 7968, 8436, 8880, 9120, 9213, 9462, 9960, 10545, 11248, 12284, 12616, 13280, 14060, 15355, 15770, 16872, 17760, 18426, 18924, 19920, 21090, 22496, 23655, 24568, 25232, 28120, 30710, 31540, 33744, 36852, 37848, 39840, 42180, 46065, 47310, 49136, 50464, 56240, 58349, 61420, 63080, 67488, 73704, 75696, 84360, 92130, 94620, 98272, 112480, 116698, 122840, 126160, 147408, 151392, 168720, 175047, 184260, 189240, 233396, 245680, 252320, 291745, 294816, 337440, 350094, 368520, 378480, 466792, 491360, 583490, 700188, 737040, 756960, 875235, 933584, 1166980, 1400376, 1474080, 1750470, 1867168, 2333960, 2800752, 3500940, 4667920, 5601504, 7001880, 9335840, 14003760, 28007520]

約数ペア:

[(1, 28007520), (2, 14003760), (3, 9335840), (4, 7001880), (5, 5601504), (6, 4667920), (8, 3500940), (10, 2800752), (12, 2333960), (15, 1867168), (16, 1750470), (19, 1474080), (20, 1400376), (24, 1166980), (30, 933584), (32, 875235), (37, 756960), (38, 737040), (40, 700188), (48, 583490), (57, 491360), (60, 466792), (74, 378480), (76, 368520), (80, 350094), (83, 337440), (95, 294816), (96, 291745), (111, 252320), (114, 245680), (120, 233396), (148, 189240), (152, 184260), (160, 175047), (166, 168720), (185, 151392), (190, 147408), (222, 126160), (228, 122840), (240, 116698), (249, 112480), (285, 98272), (296, 94620), (304, 92130), (332, 84360), (370, 75696), (380, 73704), (415, 67488), (444, 63080), (456, 61420), (480, 58349), (498, 56240), (555, 50464), (570, 49136), (592, 47310), (608, 46065), (664, 42180), (703, 39840), (740, 37848), (760, 36852), (830, 33744), (888, 31540), (912, 30710), (996, 28120), (1110, 25232), (1140, 24568), (1184, 23655), (1245, 22496), (1328, 21090), (1406, 19920), (1480, 18924), (1520, 18426), (1577, 17760), (1660, 16872), (1776, 15770), (1824, 15355), (1992, 14060), (2109, 13280), (2220, 12616), (2280, 12284), (2490, 11248), (2656, 10545), (2812, 9960), (2960, 9462), (3040, 9213), (3071, 9120), (3154, 8880), (3320, 8436), (3515, 7968), (3552, 7885), (3984, 7030), (4218, 6640), (4440, 6308), (4560, 6142), (4731, 5920), (4980, 5624)]