17640590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 35622720

約数和(自身を除く): 17982130

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 121, 122, 239, 242, 305, 478, 605, 610, 671, 1195, 1210, 1342, 2390, 2629, 3355, 5258, 6710, 7381, 13145, 14579, 14762, 26290, 28919, 29158, 36905, 57838, 72895, 73810, 144595, 145790, 160369, 289190, 320738, 801845, 1603690, 1764059, 3528118, 8820295, 17640590]

約数ペア:

[(1, 17640590), (2, 8820295), (5, 3528118), (10, 1764059), (11, 1603690), (22, 801845), (55, 320738), (61, 289190), (110, 160369), (121, 145790), (122, 144595), (239, 73810), (242, 72895), (305, 57838), (478, 36905), (605, 29158), (610, 28919), (671, 26290), (1195, 14762), (1210, 14579), (1342, 13145), (2390, 7381), (2629, 6710), (3355, 5258)]