20783940008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3276157}}^1$

素因数の和:3276237

約数の個数: 32

約数和(自身を含む): 42655577160

約数和(自身を除く): 21871637152

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 6344, 3276157, 6552314, 13104628, 26209256, 42590041, 85180082, 170360164, 199845577, 340720328, 399691154, 799382308, 1598764616, 2597992501, 5195985002, 10391970004, 20783940008]

約数ペア:

[(1, 20783940008), (2, 10391970004), (4, 5195985002), (8, 2597992501), (13, 1598764616), (26, 799382308), (52, 399691154), (61, 340720328), (104, 199845577), (122, 170360164), (244, 85180082), (488, 42590041), (793, 26209256), (1586, 13104628), (3172, 6552314), (6344, 3276157)]