8490820

素因数分解:

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

素因数の和:169

約数の個数: 72

約数和(自身を含む): 20578824

約数和(自身を除く): 12088004

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 113, 130, 170, 221, 226, 260, 289, 340, 442, 452, 565, 578, 884, 1105, 1130, 1156, 1445, 1469, 1921, 2210, 2260, 2890, 2938, 3757, 3842, 4420, 5780, 5876, 7345, 7514, 7684, 9605, 14690, 15028, 18785, 19210, 24973, 29380, 32657, 37570, 38420, 49946, 65314, 75140, 99892, 124865, 130628, 163285, 249730, 326570, 424541, 499460, 653140, 849082, 1698164, 2122705, 4245410, 8490820]

約数ペア:

[(1, 8490820), (2, 4245410), (4, 2122705), (5, 1698164), (10, 849082), (13, 653140), (17, 499460), (20, 424541), (26, 326570), (34, 249730), (52, 163285), (65, 130628), (68, 124865), (85, 99892), (113, 75140), (130, 65314), (170, 49946), (221, 38420), (226, 37570), (260, 32657), (289, 29380), (340, 24973), (442, 19210), (452, 18785), (565, 15028), (578, 14690), (884, 9605), (1105, 7684), (1130, 7514), (1156, 7345), (1445, 5876), (1469, 5780), (1921, 4420), (2210, 3842), (2260, 3757), (2890, 2938)]