318802760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257099}}^1$

素因数の和:257141

約数の個数: 32

約数和(自身を含む): 740448000

約数和(自身を除く): 421645240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 257099, 514198, 1028396, 1285495, 2056792, 2570990, 5141980, 7970069, 10283960, 15940138, 31880276, 39850345, 63760552, 79700690, 159401380, 318802760]

約数ペア:

[(1, 318802760), (2, 159401380), (4, 79700690), (5, 63760552), (8, 39850345), (10, 31880276), (20, 15940138), (31, 10283960), (40, 7970069), (62, 5141980), (124, 2570990), (155, 2056792), (248, 1285495), (310, 1028396), (620, 514198), (1240, 257099)]