207640810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:463

約数の個数: 64

約数和(自身を含む): 416586240

約数和(自身を除く): 208945430

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 163, 205, 239, 326, 410, 478, 533, 815, 1066, 1195, 1630, 2119, 2390, 2665, 3107, 4238, 5330, 6214, 6683, 9799, 10595, 13366, 15535, 19598, 21190, 31070, 33415, 38957, 48995, 66830, 77914, 86879, 97990, 127387, 173758, 194785, 254774, 389570, 434395, 506441, 636935, 868790, 1012882, 1273870, 1597237, 2532205, 3194474, 5064410, 7986185, 15972370, 20764081, 41528162, 103820405, 207640810]

約数ペア:

[(1, 207640810), (2, 103820405), (5, 41528162), (10, 20764081), (13, 15972370), (26, 7986185), (41, 5064410), (65, 3194474), (82, 2532205), (130, 1597237), (163, 1273870), (205, 1012882), (239, 868790), (326, 636935), (410, 506441), (478, 434395), (533, 389570), (815, 254774), (1066, 194785), (1195, 173758), (1630, 127387), (2119, 97990), (2390, 86879), (2665, 77914), (3107, 66830), (4238, 48995), (5330, 38957), (6214, 33415), (6683, 31070), (9799, 21190), (10595, 19598), (13366, 15535)]