172840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:189

約数の個数: 32

約数和(自身を含む): 405000

約数和(自身を除く): 232160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 149, 232, 290, 298, 580, 596, 745, 1160, 1192, 1490, 2980, 4321, 5960, 8642, 17284, 21605, 34568, 43210, 86420, 172840]

約数ペア:

[(1, 172840), (2, 86420), (4, 43210), (5, 34568), (8, 21605), (10, 17284), (20, 8642), (29, 5960), (40, 4321), (58, 2980), (116, 1490), (145, 1192), (149, 1160), (232, 745), (290, 596), (298, 580)]