658637780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1\times {\mathrm{2039}}^1$

素因数の和:2600

約数の個数: 48

約数和(自身を含む): 1431198720

約数和(自身を除く): 772560940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 521, 620, 1042, 2039, 2084, 2605, 4078, 5210, 8156, 10195, 10420, 16151, 20390, 32302, 40780, 63209, 64604, 80755, 126418, 161510, 252836, 316045, 323020, 632090, 1062319, 1264180, 2124638, 4249276, 5311595, 10623190, 21246380, 32931889, 65863778, 131727556, 164659445, 329318890, 658637780]

約数ペア:

[(1, 658637780), (2, 329318890), (4, 164659445), (5, 131727556), (10, 65863778), (20, 32931889), (31, 21246380), (62, 10623190), (124, 5311595), (155, 4249276), (310, 2124638), (521, 1264180), (620, 1062319), (1042, 632090), (2039, 323020), (2084, 316045), (2605, 252836), (4078, 161510), (5210, 126418), (8156, 80755), (10195, 64604), (10420, 63209), (16151, 40780), (20390, 32302)]