20216950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1637}}^1$

素因数の和:1681

約数の個数: 48

約数和(自身を含む): 42653520

約数和(自身を除く): 22436570

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 190, 247, 325, 475, 494, 650, 950, 1235, 1637, 2470, 3274, 6175, 8185, 12350, 16370, 21281, 31103, 40925, 42562, 62206, 81850, 106405, 155515, 212810, 311030, 404339, 532025, 777575, 808678, 1064050, 1555150, 2021695, 4043390, 10108475, 20216950]

約数ペア:

[(1, 20216950), (2, 10108475), (5, 4043390), (10, 2021695), (13, 1555150), (19, 1064050), (25, 808678), (26, 777575), (38, 532025), (50, 404339), (65, 311030), (95, 212810), (130, 155515), (190, 106405), (247, 81850), (325, 62206), (475, 42562), (494, 40925), (650, 31103), (950, 21281), (1235, 16370), (1637, 12350), (2470, 8185), (3274, 6175)]