20457810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9883}}^1$

素因数の和:9919

約数の個数: 48

約数和(自身を含む): 55508544

約数和(自身を除く): 35050734

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 9883, 19766, 29649, 49415, 59298, 88947, 98830, 148245, 177894, 227309, 296490, 444735, 454618, 681927, 889470, 1136545, 1363854, 2045781, 2273090, 3409635, 4091562, 6819270, 10228905, 20457810]

約数ペア:

[(1, 20457810), (2, 10228905), (3, 6819270), (5, 4091562), (6, 3409635), (9, 2273090), (10, 2045781), (15, 1363854), (18, 1136545), (23, 889470), (30, 681927), (45, 454618), (46, 444735), (69, 296490), (90, 227309), (115, 177894), (138, 148245), (207, 98830), (230, 88947), (345, 59298), (414, 49415), (690, 29649), (1035, 19766), (2070, 9883)]