128261406

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3851}}^1$

素因数の和:3937

約数の個数: 64

約数和(自身を含む): 320979456

約数和(自身を除く): 192718050

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 61, 78, 91, 122, 182, 183, 273, 366, 427, 546, 793, 854, 1281, 1586, 2379, 2562, 3851, 4758, 5551, 7702, 11102, 11553, 16653, 23106, 26957, 33306, 50063, 53914, 80871, 100126, 150189, 161742, 234911, 300378, 350441, 469822, 700882, 704733, 1051323, 1409466, 1644377, 2102646, 3053843, 3288754, 4933131, 6107686, 9161529, 9866262, 18323058, 21376901, 42753802, 64130703, 128261406]

約数ペア:

[(1, 128261406), (2, 64130703), (3, 42753802), (6, 21376901), (7, 18323058), (13, 9866262), (14, 9161529), (21, 6107686), (26, 4933131), (39, 3288754), (42, 3053843), (61, 2102646), (78, 1644377), (91, 1409466), (122, 1051323), (182, 704733), (183, 700882), (273, 469822), (366, 350441), (427, 300378), (546, 234911), (793, 161742), (854, 150189), (1281, 100126), (1586, 80871), (2379, 53914), (2562, 50063), (3851, 33306), (4758, 26957), (5551, 23106), (7702, 16653), (11102, 11553)]