661360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1181}}^1$

素因数の和:1201

約数の個数: 40

約数和(自身を含む): 1758816

約数和(自身を除く): 1097456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1181, 2362, 4724, 5905, 8267, 9448, 11810, 16534, 18896, 23620, 33068, 41335, 47240, 66136, 82670, 94480, 132272, 165340, 330680, 661360]

約数ペア:

[(1, 661360), (2, 330680), (4, 165340), (5, 132272), (7, 94480), (8, 82670), (10, 66136), (14, 47240), (16, 41335), (20, 33068), (28, 23620), (35, 18896), (40, 16534), (56, 11810), (70, 9448), (80, 8267), (112, 5905), (140, 4724), (280, 2362), (560, 1181)]