66457960

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{21031}}^1$

素因数の和:21121

約数の個数: 32

約数和(自身を含む): 151430400

約数和(自身を除く): 84972440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 21031, 42062, 84124, 105155, 168248, 210310, 420620, 841240, 1661449, 3322898, 6645796, 8307245, 13291592, 16614490, 33228980, 66457960]

約数ペア:

[(1, 66457960), (2, 33228980), (4, 16614490), (5, 13291592), (8, 8307245), (10, 6645796), (20, 3322898), (40, 1661449), (79, 841240), (158, 420620), (316, 210310), (395, 168248), (632, 105155), (790, 84124), (1580, 42062), (3160, 21031)]