1640434560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{7561}}^1$

素因数の和:7696

約数の個数: 128

約数和(自身を含む): 5275856160

約数和(自身を除く): 3635421600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 113, 120, 128, 160, 192, 226, 240, 320, 339, 384, 452, 480, 565, 640, 678, 904, 960, 1130, 1356, 1695, 1808, 1920, 2260, 2712, 3390, 3616, 4520, 5424, 6780, 7232, 7561, 9040, 10848, 13560, 14464, 15122, 18080, 21696, 22683, 27120, 30244, 36160, 37805, 43392, 45366, 54240, 60488, 72320, 75610, 90732, 108480, 113415, 120976, 151220, 181464, 216960, 226830, 241952, 302440, 362928, 453660, 483904, 604880, 725856, 854393, 907320, 967808, 1209760, 1451712, 1708786, 1814640, 2419520, 2563179, 2903424, 3417572, 3629280, 4271965, 4839040, 5126358, 6835144, 7258560, 8543930, 10252716, 12815895, 13670288, 14517120, 17087860, 20505432, 25631790, 27340576, 34175720, 41010864, 51263580, 54681152, 68351440, 82021728, 102527160, 109362304, 136702880, 164043456, 205054320, 273405760, 328086912, 410108640, 546811520, 820217280, 1640434560]

約数ペア:

[(1, 1640434560), (2, 820217280), (3, 546811520), (4, 410108640), (5, 328086912), (6, 273405760), (8, 205054320), (10, 164043456), (12, 136702880), (15, 109362304), (16, 102527160), (20, 82021728), (24, 68351440), (30, 54681152), (32, 51263580), (40, 41010864), (48, 34175720), (60, 27340576), (64, 25631790), (80, 20505432), (96, 17087860), (113, 14517120), (120, 13670288), (128, 12815895), (160, 10252716), (192, 8543930), (226, 7258560), (240, 6835144), (320, 5126358), (339, 4839040), (384, 4271965), (452, 3629280), (480, 3417572), (565, 2903424), (640, 2563179), (678, 2419520), (904, 1814640), (960, 1708786), (1130, 1451712), (1356, 1209760), (1695, 967808), (1808, 907320), (1920, 854393), (2260, 725856), (2712, 604880), (3390, 483904), (3616, 453660), (4520, 362928), (5424, 302440), (6780, 241952), (7232, 226830), (7561, 216960), (9040, 181464), (10848, 151220), (13560, 120976), (14464, 113415), (15122, 108480), (18080, 90732), (21696, 75610), (22683, 72320), (27120, 60488), (30244, 54240), (36160, 45366), (37805, 43392)]