20622500

素因数分解:

$2^2\times 5^4\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 60

約数和(自身を含む): 46119612

約数和(自身を除く): 25497112

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 113, 125, 146, 226, 250, 292, 365, 452, 500, 565, 625, 730, 1130, 1250, 1460, 1825, 2260, 2500, 2825, 3650, 5650, 7300, 8249, 9125, 11300, 14125, 16498, 18250, 28250, 32996, 36500, 41245, 45625, 56500, 70625, 82490, 91250, 141250, 164980, 182500, 206225, 282500, 412450, 824900, 1031125, 2062250, 4124500, 5155625, 10311250, 20622500]

約数ペア:

[(1, 20622500), (2, 10311250), (4, 5155625), (5, 4124500), (10, 2062250), (20, 1031125), (25, 824900), (50, 412450), (73, 282500), (100, 206225), (113, 182500), (125, 164980), (146, 141250), (226, 91250), (250, 82490), (292, 70625), (365, 56500), (452, 45625), (500, 41245), (565, 36500), (625, 32996), (730, 28250), (1130, 18250), (1250, 16498), (1460, 14125), (1825, 11300), (2260, 9125), (2500, 8249), (2825, 7300), (3650, 5650)]