66646520

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{9631}}^1$

素因数の和:9815

約数の個数: 32

約数和(自身を含む): 150837120

約数和(自身を除く): 84190600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 9631, 19262, 38524, 48155, 77048, 96310, 192620, 385240, 1666163, 3332326, 6664652, 8330815, 13329304, 16661630, 33323260, 66646520]

約数ペア:

[(1, 66646520), (2, 33323260), (4, 16661630), (5, 13329304), (8, 8330815), (10, 6664652), (20, 3332326), (40, 1666163), (173, 385240), (346, 192620), (692, 96310), (865, 77048), (1384, 48155), (1730, 38524), (3460, 19262), (6920, 9631)]