428397680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{172741}}^1$

素因数の和:172785

約数の個数: 40

約数和(自身を含む): 1028160384

約数和(自身を除く): 599762704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 172741, 345482, 690964, 863705, 1381928, 1727410, 2763856, 3454820, 5354971, 6909640, 10709942, 13819280, 21419884, 26774855, 42839768, 53549710, 85679536, 107099420, 214198840, 428397680]

約数ペア:

[(1, 428397680), (2, 214198840), (4, 107099420), (5, 85679536), (8, 53549710), (10, 42839768), (16, 26774855), (20, 21419884), (31, 13819280), (40, 10709942), (62, 6909640), (80, 5354971), (124, 3454820), (155, 2763856), (248, 1727410), (310, 1381928), (496, 863705), (620, 690964), (1240, 345482), (2480, 172741)]