72267820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{509}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 157651200

約数和(自身を除く): 85383380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 229, 310, 458, 509, 620, 916, 1018, 1145, 2036, 2290, 2545, 4580, 5090, 7099, 10180, 14198, 15779, 28396, 31558, 35495, 63116, 70990, 78895, 116561, 141980, 157790, 233122, 315580, 466244, 582805, 1165610, 2331220, 3613391, 7226782, 14453564, 18066955, 36133910, 72267820]

約数ペア:

[(1, 72267820), (2, 36133910), (4, 18066955), (5, 14453564), (10, 7226782), (20, 3613391), (31, 2331220), (62, 1165610), (124, 582805), (155, 466244), (229, 315580), (310, 233122), (458, 157790), (509, 141980), (620, 116561), (916, 78895), (1018, 70990), (1145, 63116), (2036, 35495), (2290, 31558), (2545, 28396), (4580, 15779), (5090, 14198), (7099, 10180)]