998920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 2585520

約数和(自身を除く): 1586600

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 113, 130, 136, 170, 221, 226, 260, 340, 442, 452, 520, 565, 680, 884, 904, 1105, 1130, 1469, 1768, 1921, 2210, 2260, 2938, 3842, 4420, 4520, 5876, 7345, 7684, 8840, 9605, 11752, 14690, 15368, 19210, 24973, 29380, 38420, 49946, 58760, 76840, 99892, 124865, 199784, 249730, 499460, 998920]

約数ペア:

[(1, 998920), (2, 499460), (4, 249730), (5, 199784), (8, 124865), (10, 99892), (13, 76840), (17, 58760), (20, 49946), (26, 38420), (34, 29380), (40, 24973), (52, 19210), (65, 15368), (68, 14690), (85, 11752), (104, 9605), (113, 8840), (130, 7684), (136, 7345), (170, 5876), (221, 4520), (226, 4420), (260, 3842), (340, 2938), (442, 2260), (452, 2210), (520, 1921), (565, 1768), (680, 1469), (884, 1130), (904, 1105)]