638761510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{13829}}^1$

素因数の和:14016

約数の個数: 32

約数和(自身を含む): 1194912000

約数和(自身を除く): 556150490

約数列:

[1, 2, 5, 10, 31, 62, 149, 155, 298, 310, 745, 1490, 4619, 9238, 13829, 23095, 27658, 46190, 69145, 138290, 428699, 857398, 2060521, 2143495, 4121042, 4286990, 10302605, 20605210, 63876151, 127752302, 319380755, 638761510]

約数ペア:

[(1, 638761510), (2, 319380755), (5, 127752302), (10, 63876151), (31, 20605210), (62, 10302605), (149, 4286990), (155, 4121042), (298, 2143495), (310, 2060521), (745, 857398), (1490, 428699), (4619, 138290), (9238, 69145), (13829, 46190), (23095, 27658)]