66641240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{21089}}^1$

素因数の和:21179

約数の個数: 32

約数和(自身を含む): 151848000

約数和(自身を除く): 85206760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 21089, 42178, 84356, 105445, 168712, 210890, 421780, 843560, 1666031, 3332062, 6664124, 8330155, 13328248, 16660310, 33320620, 66641240]

約数ペア:

[(1, 66641240), (2, 33320620), (4, 16660310), (5, 13328248), (8, 8330155), (10, 6664124), (20, 3332062), (40, 1666031), (79, 843560), (158, 421780), (316, 210890), (395, 168712), (632, 105445), (790, 84356), (1580, 42178), (3160, 21089)]