279884920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13693}}^1$

素因数の和:13784

約数の個数: 64

約数和(自身を含む): 729616320

約数和(自身を除く): 449731400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 13693, 20440, 27386, 54772, 68465, 95851, 109544, 136930, 191702, 273860, 383404, 479255, 547720, 766808, 958510, 999589, 1917020, 1999178, 3834040, 3998356, 4997945, 6997123, 7996712, 9995890, 13994246, 19991780, 27988492, 34985615, 39983560, 55976984, 69971230, 139942460, 279884920]

約数ペア:

[(1, 279884920), (2, 139942460), (4, 69971230), (5, 55976984), (7, 39983560), (8, 34985615), (10, 27988492), (14, 19991780), (20, 13994246), (28, 9995890), (35, 7996712), (40, 6997123), (56, 4997945), (70, 3998356), (73, 3834040), (140, 1999178), (146, 1917020), (280, 999589), (292, 958510), (365, 766808), (511, 547720), (584, 479255), (730, 383404), (1022, 273860), (1460, 191702), (2044, 136930), (2555, 109544), (2920, 95851), (4088, 68465), (5110, 54772), (10220, 27386), (13693, 20440)]