161145880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{701}}^1\times {\mathrm{821}}^1$

素因数の和:1540

約数の個数: 64

約数和(自身を含む): 415471680

約数和(自身を除く): 254325800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 701, 821, 1402, 1642, 2804, 3284, 3505, 4105, 4907, 5608, 5747, 6568, 7010, 8210, 9814, 11494, 14020, 16420, 19628, 22988, 24535, 28040, 28735, 32840, 39256, 45976, 49070, 57470, 98140, 114940, 196280, 229880, 575521, 1151042, 2302084, 2877605, 4028647, 4604168, 5755210, 8057294, 11510420, 16114588, 20143235, 23020840, 32229176, 40286470, 80572940, 161145880]

約数ペア:

[(1, 161145880), (2, 80572940), (4, 40286470), (5, 32229176), (7, 23020840), (8, 20143235), (10, 16114588), (14, 11510420), (20, 8057294), (28, 5755210), (35, 4604168), (40, 4028647), (56, 2877605), (70, 2302084), (140, 1151042), (280, 575521), (701, 229880), (821, 196280), (1402, 114940), (1642, 98140), (2804, 57470), (3284, 49070), (3505, 45976), (4105, 39256), (4907, 32840), (5608, 28735), (5747, 28040), (6568, 24535), (7010, 22988), (8210, 19628), (9814, 16420), (11494, 14020)]