61780365

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 112359936

約数和(自身を除く): 50579571

約数列:

[1, 3, 5, 9, 15, 31, 45, 67, 93, 155, 201, 279, 335, 465, 603, 661, 1005, 1395, 1983, 2077, 3015, 3305, 5949, 6231, 9915, 10385, 18693, 20491, 29745, 31155, 44287, 61473, 93465, 102455, 132861, 184419, 221435, 307365, 398583, 664305, 922095, 1372897, 1992915, 4118691, 6864485, 12356073, 20593455, 61780365]

約数ペア:

[(1, 61780365), (3, 20593455), (5, 12356073), (9, 6864485), (15, 4118691), (31, 1992915), (45, 1372897), (67, 922095), (93, 664305), (155, 398583), (201, 307365), (279, 221435), (335, 184419), (465, 132861), (603, 102455), (661, 93465), (1005, 61473), (1395, 44287), (1983, 31155), (2077, 29745), (3015, 20491), (3305, 18693), (5949, 10385), (6231, 9915)]