247928080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{99971}}^1$

素因数の和:100015

約数の個数: 40

約数和(自身を含む): 595033344

約数和(自身を除く): 347105264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 99971, 199942, 399884, 499855, 799768, 999710, 1599536, 1999420, 3099101, 3998840, 6198202, 7997680, 12396404, 15495505, 24792808, 30991010, 49585616, 61982020, 123964040, 247928080]

約数ペア:

[(1, 247928080), (2, 123964040), (4, 61982020), (5, 49585616), (8, 30991010), (10, 24792808), (16, 15495505), (20, 12396404), (31, 7997680), (40, 6198202), (62, 3998840), (80, 3099101), (124, 1999420), (155, 1599536), (248, 999710), (310, 799768), (496, 499855), (620, 399884), (1240, 199942), (2480, 99971)]