642440880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{719}}^1$

素因数の和:828

約数の個数: 240

約数和(自身を含む): 2318958720

約数和(自身を除く): 1676517840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 73, 80, 85, 90, 102, 120, 136, 144, 146, 153, 170, 180, 204, 219, 240, 255, 272, 292, 306, 340, 360, 365, 408, 438, 510, 584, 612, 657, 680, 719, 720, 730, 765, 816, 876, 1020, 1095, 1168, 1224, 1241, 1314, 1360, 1438, 1460, 1530, 1752, 2040, 2157, 2190, 2448, 2482, 2628, 2876, 2920, 3060, 3285, 3504, 3595, 3723, 4080, 4314, 4380, 4964, 5256, 5752, 5840, 6120, 6205, 6471, 6570, 7190, 7446, 8628, 8760, 9928, 10512, 10785, 11169, 11504, 12223, 12240, 12410, 12942, 13140, 14380, 14892, 17256, 17520, 18615, 19856, 21570, 22338, 24446, 24820, 25884, 26280, 28760, 29784, 32355, 34512, 36669, 37230, 43140, 44676, 48892, 49640, 51768, 52487, 52560, 55845, 57520, 59568, 61115, 64710, 73338, 74460, 86280, 89352, 97784, 99280, 103536, 104974, 110007, 111690, 122230, 129420, 146676, 148920, 157461, 172560, 178704, 183345, 195568, 209948, 220014, 223380, 244460, 258840, 262435, 293352, 297840, 314922, 366690, 419896, 440028, 446760, 472383, 488920, 517680, 524870, 550035, 586704, 629844, 733380, 787305, 839792, 880056, 892279, 893520, 944766, 977840, 1049740, 1100070, 1259688, 1466760, 1574610, 1760112, 1784558, 1889532, 2099480, 2200140, 2361915, 2519376, 2676837, 2933520, 3149220, 3569116, 3779064, 4198960, 4400280, 4461395, 4723830, 5353674, 6298440, 7138232, 7558128, 8030511, 8800560, 8922790, 9447660, 10707348, 12596880, 13384185, 14276464, 16061022, 17845580, 18895320, 21414696, 26768370, 32122044, 35691160, 37790640, 40152555, 42829392, 53536740, 64244088, 71382320, 80305110, 107073480, 128488176, 160610220, 214146960, 321220440, 642440880]

約数ペア:

[(1, 642440880), (2, 321220440), (3, 214146960), (4, 160610220), (5, 128488176), (6, 107073480), (8, 80305110), (9, 71382320), (10, 64244088), (12, 53536740), (15, 42829392), (16, 40152555), (17, 37790640), (18, 35691160), (20, 32122044), (24, 26768370), (30, 21414696), (34, 18895320), (36, 17845580), (40, 16061022), (45, 14276464), (48, 13384185), (51, 12596880), (60, 10707348), (68, 9447660), (72, 8922790), (73, 8800560), (80, 8030511), (85, 7558128), (90, 7138232), (102, 6298440), (120, 5353674), (136, 4723830), (144, 4461395), (146, 4400280), (153, 4198960), (170, 3779064), (180, 3569116), (204, 3149220), (219, 2933520), (240, 2676837), (255, 2519376), (272, 2361915), (292, 2200140), (306, 2099480), (340, 1889532), (360, 1784558), (365, 1760112), (408, 1574610), (438, 1466760), (510, 1259688), (584, 1100070), (612, 1049740), (657, 977840), (680, 944766), (719, 893520), (720, 892279), (730, 880056), (765, 839792), (816, 787305), (876, 733380), (1020, 629844), (1095, 586704), (1168, 550035), (1224, 524870), (1241, 517680), (1314, 488920), (1360, 472383), (1438, 446760), (1460, 440028), (1530, 419896), (1752, 366690), (2040, 314922), (2157, 297840), (2190, 293352), (2448, 262435), (2482, 258840), (2628, 244460), (2876, 223380), (2920, 220014), (3060, 209948), (3285, 195568), (3504, 183345), (3595, 178704), (3723, 172560), (4080, 157461), (4314, 148920), (4380, 146676), (4964, 129420), (5256, 122230), (5752, 111690), (5840, 110007), (6120, 104974), (6205, 103536), (6471, 99280), (6570, 97784), (7190, 89352), (7446, 86280), (8628, 74460), (8760, 73338), (9928, 64710), (10512, 61115), (10785, 59568), (11169, 57520), (11504, 55845), (12223, 52560), (12240, 52487), (12410, 51768), (12942, 49640), (13140, 48892), (14380, 44676), (14892, 43140), (17256, 37230), (17520, 36669), (18615, 34512), (19856, 32355), (21570, 29784), (22338, 28760), (24446, 26280), (24820, 25884)]