12665680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 31872960

約数和(自身を除く): 19207280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 67, 68, 80, 85, 134, 136, 139, 170, 268, 272, 278, 335, 340, 536, 556, 670, 680, 695, 1072, 1112, 1139, 1340, 1360, 1390, 2224, 2278, 2363, 2680, 2780, 4556, 4726, 5360, 5560, 5695, 9112, 9313, 9452, 11120, 11390, 11815, 18224, 18626, 18904, 22780, 23630, 37252, 37808, 45560, 46565, 47260, 74504, 91120, 93130, 94520, 149008, 158321, 186260, 189040, 316642, 372520, 633284, 745040, 791605, 1266568, 1583210, 2533136, 3166420, 6332840, 12665680]

約数ペア:

[(1, 12665680), (2, 6332840), (4, 3166420), (5, 2533136), (8, 1583210), (10, 1266568), (16, 791605), (17, 745040), (20, 633284), (34, 372520), (40, 316642), (67, 189040), (68, 186260), (80, 158321), (85, 149008), (134, 94520), (136, 93130), (139, 91120), (170, 74504), (268, 47260), (272, 46565), (278, 45560), (335, 37808), (340, 37252), (536, 23630), (556, 22780), (670, 18904), (680, 18626), (695, 18224), (1072, 11815), (1112, 11390), (1139, 11120), (1340, 9452), (1360, 9313), (1390, 9112), (2224, 5695), (2278, 5560), (2363, 5360), (2680, 4726), (2780, 4556)]