745999660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{280451}}^1$

素因数の和:280486

約数の個数: 48

約数和(自身を含む): 1884637440

約数和(自身を除く): 1138637780

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 280451, 560902, 1121804, 1402255, 1963157, 2804510, 3926314, 5328569, 5609020, 7852628, 9815785, 10657138, 19631570, 21314276, 26642845, 37299983, 39263140, 53285690, 74599966, 106571380, 149199932, 186499915, 372999830, 745999660]

約数ペア:

[(1, 745999660), (2, 372999830), (4, 186499915), (5, 149199932), (7, 106571380), (10, 74599966), (14, 53285690), (19, 39263140), (20, 37299983), (28, 26642845), (35, 21314276), (38, 19631570), (70, 10657138), (76, 9815785), (95, 7852628), (133, 5609020), (140, 5328569), (190, 3926314), (266, 2804510), (380, 1963157), (532, 1402255), (665, 1121804), (1330, 560902), (2660, 280451)]