257875360

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51991}}^1$

素因数の和:52037

約数の個数: 48

約数和(自身を含む): 628895232

約数和(自身を除く): 371019872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 51991, 103982, 207964, 259955, 415928, 519910, 831856, 1039820, 1611721, 1663712, 2079640, 3223442, 4159280, 6446884, 8058605, 8318560, 12893768, 16117210, 25787536, 32234420, 51575072, 64468840, 128937680, 257875360]

約数ペア:

[(1, 257875360), (2, 128937680), (4, 64468840), (5, 51575072), (8, 32234420), (10, 25787536), (16, 16117210), (20, 12893768), (31, 8318560), (32, 8058605), (40, 6446884), (62, 4159280), (80, 3223442), (124, 2079640), (155, 1663712), (160, 1611721), (248, 1039820), (310, 831856), (496, 519910), (620, 415928), (992, 259955), (1240, 207964), (2480, 103982), (4960, 51991)]