90107780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2693}}^1$

素因数の和:2948

約数の個数: 48

約数和(自身を含む): 217244160

約数和(自身を除く): 127136380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 956, 1195, 1673, 2390, 2693, 3346, 4780, 5386, 6692, 8365, 10772, 13465, 16730, 18851, 26930, 33460, 37702, 53860, 75404, 94255, 188510, 377020, 643627, 1287254, 2574508, 3218135, 4505389, 6436270, 9010778, 12872540, 18021556, 22526945, 45053890, 90107780]

約数ペア:

[(1, 90107780), (2, 45053890), (4, 22526945), (5, 18021556), (7, 12872540), (10, 9010778), (14, 6436270), (20, 4505389), (28, 3218135), (35, 2574508), (70, 1287254), (140, 643627), (239, 377020), (478, 188510), (956, 94255), (1195, 75404), (1673, 53860), (2390, 37702), (2693, 33460), (3346, 26930), (4780, 18851), (5386, 16730), (6692, 13465), (8365, 10772)]