71304080

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 172113984

約数和(自身を除く): 100809904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 67, 80, 106, 134, 212, 251, 265, 268, 335, 424, 502, 530, 536, 670, 848, 1004, 1060, 1072, 1255, 1340, 2008, 2120, 2510, 2680, 3551, 4016, 4240, 5020, 5360, 7102, 10040, 13303, 14204, 16817, 17755, 20080, 26606, 28408, 33634, 35510, 53212, 56816, 66515, 67268, 71020, 84085, 106424, 133030, 134536, 142040, 168170, 212848, 266060, 269072, 284080, 336340, 532120, 672680, 891301, 1064240, 1345360, 1782602, 3565204, 4456505, 7130408, 8913010, 14260816, 17826020, 35652040, 71304080]

約数ペア:

[(1, 71304080), (2, 35652040), (4, 17826020), (5, 14260816), (8, 8913010), (10, 7130408), (16, 4456505), (20, 3565204), (40, 1782602), (53, 1345360), (67, 1064240), (80, 891301), (106, 672680), (134, 532120), (212, 336340), (251, 284080), (265, 269072), (268, 266060), (335, 212848), (424, 168170), (502, 142040), (530, 134536), (536, 133030), (670, 106424), (848, 84085), (1004, 71020), (1060, 67268), (1072, 66515), (1255, 56816), (1340, 53212), (2008, 35510), (2120, 33634), (2510, 28408), (2680, 26606), (3551, 20080), (4016, 17755), (4240, 16817), (5020, 14204), (5360, 13303), (7102, 10040)]