281149540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{64781}}^1$

素因数の和:64828

約数の個数: 48

約数和(自身を含む): 696536064

約数和(自身を除く): 415386524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 64781, 129562, 259124, 323905, 453467, 647810, 906934, 1295620, 1813868, 2008211, 2267335, 4016422, 4534670, 8032844, 9069340, 10041055, 14057477, 20082110, 28114954, 40164220, 56229908, 70287385, 140574770, 281149540]

約数ペア:

[(1, 281149540), (2, 140574770), (4, 70287385), (5, 56229908), (7, 40164220), (10, 28114954), (14, 20082110), (20, 14057477), (28, 10041055), (31, 9069340), (35, 8032844), (62, 4534670), (70, 4016422), (124, 2267335), (140, 2008211), (155, 1813868), (217, 1295620), (310, 906934), (434, 647810), (620, 453467), (868, 323905), (1085, 259124), (2170, 129562), (4340, 64781)]