820242920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{154181}}^1$

素因数の和:154218

約数の個数: 64

約数和(自身を含む): 2220220800

約数和(自身を除く): 1399977880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 154181, 308362, 616724, 770905, 1079267, 1233448, 1541810, 2158534, 2929439, 3083620, 4317068, 5396335, 5858878, 6167240, 8634136, 10792670, 11717756, 14647195, 20506073, 21585340, 23435512, 29294390, 41012146, 43170680, 58588780, 82024292, 102530365, 117177560, 164048584, 205060730, 410121460, 820242920]

約数ペア:

[(1, 820242920), (2, 410121460), (4, 205060730), (5, 164048584), (7, 117177560), (8, 102530365), (10, 82024292), (14, 58588780), (19, 43170680), (20, 41012146), (28, 29294390), (35, 23435512), (38, 21585340), (40, 20506073), (56, 14647195), (70, 11717756), (76, 10792670), (95, 8634136), (133, 6167240), (140, 5858878), (152, 5396335), (190, 4317068), (266, 3083620), (280, 2929439), (380, 2158534), (532, 1541810), (665, 1233448), (760, 1079267), (1064, 770905), (1330, 616724), (2660, 308362), (5320, 154181)]