289009120

素因数分解:

$2^5\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3467}}^1$

素因数の和:4003

約数の個数: 48

約数和(自身を含む): 684291888

約数和(自身を除く): 395282768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 521, 1042, 2084, 2605, 3467, 4168, 5210, 6934, 8336, 10420, 13868, 16672, 17335, 20840, 27736, 34670, 41680, 55472, 69340, 83360, 110944, 138680, 277360, 554720, 1806307, 3612614, 7225228, 9031535, 14450456, 18063070, 28900912, 36126140, 57801824, 72252280, 144504560, 289009120]

約数ペア:

[(1, 289009120), (2, 144504560), (4, 72252280), (5, 57801824), (8, 36126140), (10, 28900912), (16, 18063070), (20, 14450456), (32, 9031535), (40, 7225228), (80, 3612614), (160, 1806307), (521, 554720), (1042, 277360), (2084, 138680), (2605, 110944), (3467, 83360), (4168, 69340), (5210, 55472), (6934, 41680), (8336, 34670), (10420, 27736), (13868, 20840), (16672, 17335)]