1811421640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{57251}}^1$

素因数の和:57382

約数の個数: 64

約数和(自身を含む): 4699244160

約数和(自身を除く): 2887822520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 791, 904, 1130, 1582, 2260, 3164, 3955, 4520, 6328, 7910, 15820, 31640, 57251, 114502, 229004, 286255, 400757, 458008, 572510, 801514, 1145020, 1603028, 2003785, 2290040, 3206056, 4007570, 6469363, 8015140, 12938726, 16030280, 25877452, 32346815, 45285541, 51754904, 64693630, 90571082, 129387260, 181142164, 226427705, 258774520, 362284328, 452855410, 905710820, 1811421640]

約数ペア:

[(1, 1811421640), (2, 905710820), (4, 452855410), (5, 362284328), (7, 258774520), (8, 226427705), (10, 181142164), (14, 129387260), (20, 90571082), (28, 64693630), (35, 51754904), (40, 45285541), (56, 32346815), (70, 25877452), (113, 16030280), (140, 12938726), (226, 8015140), (280, 6469363), (452, 4007570), (565, 3206056), (791, 2290040), (904, 2003785), (1130, 1603028), (1582, 1145020), (2260, 801514), (3164, 572510), (3955, 458008), (4520, 400757), (6328, 286255), (7910, 229004), (15820, 114502), (31640, 57251)]