20071844390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{421}}^1\times {\mathrm{28211}}^1$

素因数の和:28665

約数の個数: 48

約数和(自身を含む): 39216598416

約数和(自身を除く): 19144754026

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 421, 842, 845, 1690, 2105, 4210, 5473, 10946, 27365, 28211, 54730, 56422, 71149, 141055, 142298, 282110, 355745, 366743, 711490, 733486, 1833715, 3667430, 4767659, 9535318, 11876831, 23753662, 23838295, 47676590, 59384155, 118768310, 154398803, 308797606, 771994015, 1543988030, 2007184439, 4014368878, 10035922195, 20071844390]

約数ペア:

[(1, 20071844390), (2, 10035922195), (5, 4014368878), (10, 2007184439), (13, 1543988030), (26, 771994015), (65, 308797606), (130, 154398803), (169, 118768310), (338, 59384155), (421, 47676590), (842, 23838295), (845, 23753662), (1690, 11876831), (2105, 9535318), (4210, 4767659), (5473, 3667430), (10946, 1833715), (27365, 733486), (28211, 711490), (54730, 366743), (56422, 355745), (71149, 282110), (141055, 142298)]