19510120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1181}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 51062400

約数和(自身を除く): 31552280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 236, 280, 295, 413, 472, 590, 826, 1180, 1181, 1652, 2065, 2360, 2362, 3304, 4130, 4724, 5905, 8260, 8267, 9448, 11810, 16520, 16534, 23620, 33068, 41335, 47240, 66136, 69679, 82670, 139358, 165340, 278716, 330680, 348395, 487753, 557432, 696790, 975506, 1393580, 1951012, 2438765, 2787160, 3902024, 4877530, 9755060, 19510120]

約数ペア:

[(1, 19510120), (2, 9755060), (4, 4877530), (5, 3902024), (7, 2787160), (8, 2438765), (10, 1951012), (14, 1393580), (20, 975506), (28, 696790), (35, 557432), (40, 487753), (56, 348395), (59, 330680), (70, 278716), (118, 165340), (140, 139358), (236, 82670), (280, 69679), (295, 66136), (413, 47240), (472, 41335), (590, 33068), (826, 23620), (1180, 16534), (1181, 16520), (1652, 11810), (2065, 9448), (2360, 8267), (2362, 8260), (3304, 5905), (4130, 4724)]