64878320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{62383}}^1$

素因数の和:62409

約数の個数: 40

約数和(自身を含む): 162447936

約数和(自身を除く): 97569616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 62383, 124766, 249532, 311915, 499064, 623830, 810979, 998128, 1247660, 1621958, 2495320, 3243916, 4054895, 4990640, 6487832, 8109790, 12975664, 16219580, 32439160, 64878320]

約数ペア:

[(1, 64878320), (2, 32439160), (4, 16219580), (5, 12975664), (8, 8109790), (10, 6487832), (13, 4990640), (16, 4054895), (20, 3243916), (26, 2495320), (40, 1621958), (52, 1247660), (65, 998128), (80, 810979), (104, 623830), (130, 499064), (208, 311915), (260, 249532), (520, 124766), (1040, 62383)]