20363960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29947}}^1$

素因数の和:29975

約数の個数: 32

約数和(自身を含む): 48515760

約数和(自身を除く): 28151800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29947, 59894, 119788, 149735, 239576, 299470, 509099, 598940, 1018198, 1197880, 2036396, 2545495, 4072792, 5090990, 10181980, 20363960]

約数ペア:

[(1, 20363960), (2, 10181980), (4, 5090990), (5, 4072792), (8, 2545495), (10, 2036396), (17, 1197880), (20, 1018198), (34, 598940), (40, 509099), (68, 299470), (85, 239576), (136, 149735), (170, 119788), (340, 59894), (680, 29947)]