20837390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1663}}^1$

素因数の和:1856

約数の個数: 32

約数和(自身を含む): 43130880

約数和(自身を除く): 22293490

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 179, 358, 895, 1253, 1663, 1790, 2506, 3326, 6265, 8315, 11641, 12530, 16630, 23282, 58205, 116410, 297677, 595354, 1488385, 2083739, 2976770, 4167478, 10418695, 20837390]

約数ペア:

[(1, 20837390), (2, 10418695), (5, 4167478), (7, 2976770), (10, 2083739), (14, 1488385), (35, 595354), (70, 297677), (179, 116410), (358, 58205), (895, 23282), (1253, 16630), (1663, 12530), (1790, 11641), (2506, 8315), (3326, 6265)]