13451240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1609}}^1$

素因数の和:1650

約数の個数: 64

約数和(自身を含む): 34776000

約数和(自身を除く): 21324760

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1609, 1672, 2090, 3218, 4180, 6436, 8045, 8360, 12872, 16090, 17699, 30571, 32180, 35398, 61142, 64360, 70796, 88495, 122284, 141592, 152855, 176990, 244568, 305710, 336281, 353980, 611420, 672562, 707960, 1222840, 1345124, 1681405, 2690248, 3362810, 6725620, 13451240]

約数ペア:

[(1, 13451240), (2, 6725620), (4, 3362810), (5, 2690248), (8, 1681405), (10, 1345124), (11, 1222840), (19, 707960), (20, 672562), (22, 611420), (38, 353980), (40, 336281), (44, 305710), (55, 244568), (76, 176990), (88, 152855), (95, 141592), (110, 122284), (152, 88495), (190, 70796), (209, 64360), (220, 61142), (380, 35398), (418, 32180), (440, 30571), (760, 17699), (836, 16090), (1045, 12872), (1609, 8360), (1672, 8045), (2090, 6436), (3218, 4180)]