20154645

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{587}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 20205675

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 109, 315, 327, 545, 587, 763, 981, 1635, 1761, 2289, 2935, 3815, 4109, 4905, 5283, 6867, 8805, 11445, 12327, 20545, 26415, 34335, 36981, 61635, 63983, 184905, 191949, 319915, 447881, 575847, 959745, 1343643, 2239405, 2879235, 4030929, 6718215, 20154645]

約数ペア:

[(1, 20154645), (3, 6718215), (5, 4030929), (7, 2879235), (9, 2239405), (15, 1343643), (21, 959745), (35, 575847), (45, 447881), (63, 319915), (105, 191949), (109, 184905), (315, 63983), (327, 61635), (545, 36981), (587, 34335), (763, 26415), (981, 20545), (1635, 12327), (1761, 11445), (2289, 8805), (2935, 6867), (3815, 5283), (4109, 4905)]