691010380

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1\times {\mathrm{613}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 1466821440

約数和(自身を除く): 775811060

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 359, 613, 628, 718, 785, 1226, 1436, 1570, 1795, 2452, 3065, 3140, 3590, 6130, 7180, 12260, 56363, 96241, 112726, 192482, 220067, 225452, 281815, 384964, 440134, 481205, 563630, 880268, 962410, 1100335, 1127260, 1924820, 2200670, 4401340, 34550519, 69101038, 138202076, 172752595, 345505190, 691010380]

約数ペア:

[(1, 691010380), (2, 345505190), (4, 172752595), (5, 138202076), (10, 69101038), (20, 34550519), (157, 4401340), (314, 2200670), (359, 1924820), (613, 1127260), (628, 1100335), (718, 962410), (785, 880268), (1226, 563630), (1436, 481205), (1570, 440134), (1795, 384964), (2452, 281815), (3065, 225452), (3140, 220067), (3590, 192482), (6130, 112726), (7180, 96241), (12260, 56363)]