156958780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:931

約数の個数: 72

約数和(自身を含む): 367335360

約数和(自身を除く): 210376580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 121, 158, 220, 242, 316, 395, 484, 605, 790, 821, 869, 1210, 1580, 1642, 1738, 2420, 3284, 3476, 4105, 4345, 8210, 8690, 9031, 9559, 16420, 17380, 18062, 19118, 36124, 38236, 45155, 47795, 64859, 90310, 95590, 99341, 129718, 180620, 191180, 198682, 259436, 324295, 397364, 496705, 648590, 713449, 993410, 1297180, 1426898, 1986820, 2853796, 3567245, 7134490, 7847939, 14268980, 15695878, 31391756, 39239695, 78479390, 156958780]

約数ペア:

[(1, 156958780), (2, 78479390), (4, 39239695), (5, 31391756), (10, 15695878), (11, 14268980), (20, 7847939), (22, 7134490), (44, 3567245), (55, 2853796), (79, 1986820), (110, 1426898), (121, 1297180), (158, 993410), (220, 713449), (242, 648590), (316, 496705), (395, 397364), (484, 324295), (605, 259436), (790, 198682), (821, 191180), (869, 180620), (1210, 129718), (1580, 99341), (1642, 95590), (1738, 90310), (2420, 64859), (3284, 47795), (3476, 45155), (4105, 38236), (4345, 36124), (8210, 19118), (8690, 18062), (9031, 17380), (9559, 16420)]