21902200

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2671}}^1$

素因数の和:2728

約数の個数: 48

約数和(自身を含む): 52184160

約数和(自身を除く): 30281960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2671, 4100, 5342, 8200, 10684, 13355, 21368, 26710, 53420, 66775, 106840, 109511, 133550, 219022, 267100, 438044, 534200, 547555, 876088, 1095110, 2190220, 2737775, 4380440, 5475550, 10951100, 21902200]

約数ペア:

[(1, 21902200), (2, 10951100), (4, 5475550), (5, 4380440), (8, 2737775), (10, 2190220), (20, 1095110), (25, 876088), (40, 547555), (41, 534200), (50, 438044), (82, 267100), (100, 219022), (164, 133550), (200, 109511), (205, 106840), (328, 66775), (410, 53420), (820, 26710), (1025, 21368), (1640, 13355), (2050, 10684), (2671, 8200), (4100, 5342)]