20852490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:723

約数の個数: 64

約数和(自身を含む): 53415936

約数和(自身を除く): 32563446

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 47, 69, 94, 115, 138, 141, 230, 235, 282, 345, 470, 643, 690, 705, 1081, 1286, 1410, 1929, 2162, 3215, 3243, 3858, 5405, 6430, 6486, 9645, 10810, 14789, 16215, 19290, 29578, 30221, 32430, 44367, 60442, 73945, 88734, 90663, 147890, 151105, 181326, 221835, 302210, 443670, 453315, 695083, 906630, 1390166, 2085249, 3475415, 4170498, 6950830, 10426245, 20852490]

約数ペア:

[(1, 20852490), (2, 10426245), (3, 6950830), (5, 4170498), (6, 3475415), (10, 2085249), (15, 1390166), (23, 906630), (30, 695083), (46, 453315), (47, 443670), (69, 302210), (94, 221835), (115, 181326), (138, 151105), (141, 147890), (230, 90663), (235, 88734), (282, 73945), (345, 60442), (470, 44367), (643, 32430), (690, 30221), (705, 29578), (1081, 19290), (1286, 16215), (1410, 14789), (1929, 10810), (2162, 9645), (3215, 6486), (3243, 6430), (3858, 5405)]