11855240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{821}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 28186380

約数和(自身を除く): 16331140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 821, 1444, 1642, 1805, 2888, 3284, 3610, 4105, 6568, 7220, 8210, 14440, 15599, 16420, 31198, 32840, 62396, 77995, 124792, 155990, 296381, 311980, 592762, 623960, 1185524, 1481905, 2371048, 2963810, 5927620, 11855240]

約数ペア:

[(1, 11855240), (2, 5927620), (4, 2963810), (5, 2371048), (8, 1481905), (10, 1185524), (19, 623960), (20, 592762), (38, 311980), (40, 296381), (76, 155990), (95, 124792), (152, 77995), (190, 62396), (361, 32840), (380, 31198), (722, 16420), (760, 15599), (821, 14440), (1444, 8210), (1642, 7220), (1805, 6568), (2888, 4105), (3284, 3610)]