513980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:869

約数の個数: 24

約数和(自身を含む): 1115520

約数和(自身を除く): 601540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 829, 1658, 3316, 4145, 8290, 16580, 25699, 51398, 102796, 128495, 256990, 513980]

約数ペア:

[(1, 513980), (2, 256990), (4, 128495), (5, 102796), (10, 51398), (20, 25699), (31, 16580), (62, 8290), (124, 4145), (155, 3316), (310, 1658), (620, 829)]