20161367860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{130969}}^1$

素因数の和:131200

約数の個数: 48

約数和(自身を含む): 43565860800

約数和(自身を除く): 23404492940

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 215, 358, 430, 716, 860, 895, 1790, 3580, 7697, 15394, 30788, 38485, 76970, 130969, 153940, 261938, 523876, 654845, 1309690, 2619380, 5631667, 11263334, 22526668, 23443451, 28158335, 46886902, 56316670, 93773804, 112633340, 117217255, 234434510, 468869020, 1008068393, 2016136786, 4032273572, 5040341965, 10080683930, 20161367860]

約数ペア:

[(1, 20161367860), (2, 10080683930), (4, 5040341965), (5, 4032273572), (10, 2016136786), (20, 1008068393), (43, 468869020), (86, 234434510), (172, 117217255), (179, 112633340), (215, 93773804), (358, 56316670), (430, 46886902), (716, 28158335), (860, 23443451), (895, 22526668), (1790, 11263334), (3580, 5631667), (7697, 2619380), (15394, 1309690), (30788, 654845), (38485, 523876), (76970, 261938), (130969, 153940)]