77842040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 180956160

約数和(自身を除く): 103114120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 167, 172, 215, 271, 334, 344, 430, 542, 668, 835, 860, 1084, 1336, 1355, 1670, 1720, 2168, 2710, 3340, 5420, 6680, 7181, 10840, 11653, 14362, 23306, 28724, 35905, 45257, 46612, 57448, 58265, 71810, 90514, 93224, 116530, 143620, 181028, 226285, 233060, 287240, 362056, 452570, 466120, 905140, 1810280, 1946051, 3892102, 7784204, 9730255, 15568408, 19460510, 38921020, 77842040]

約数ペア:

[(1, 77842040), (2, 38921020), (4, 19460510), (5, 15568408), (8, 9730255), (10, 7784204), (20, 3892102), (40, 1946051), (43, 1810280), (86, 905140), (167, 466120), (172, 452570), (215, 362056), (271, 287240), (334, 233060), (344, 226285), (430, 181028), (542, 143620), (668, 116530), (835, 93224), (860, 90514), (1084, 71810), (1336, 58265), (1355, 57448), (1670, 46612), (1720, 45257), (2168, 35905), (2710, 28724), (3340, 23306), (5420, 14362), (6680, 11653), (7181, 10840)]