78117890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{19979}}^1$

素因数の和:20026

約数の個数: 32

約数和(自身を含む): 155364480

約数和(自身を除く): 77246590

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 19979, 39958, 99895, 199790, 339643, 459517, 679286, 919034, 1698215, 2297585, 3396430, 4595170, 7811789, 15623578, 39058945, 78117890]

約数ペア:

[(1, 78117890), (2, 39058945), (5, 15623578), (10, 7811789), (17, 4595170), (23, 3396430), (34, 2297585), (46, 1698215), (85, 919034), (115, 679286), (170, 459517), (230, 339643), (391, 199790), (782, 99895), (1955, 39958), (3910, 19979)]