31151745

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 56489472

約数和(自身を除く): 25337727

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 137, 155, 163, 279, 411, 465, 489, 685, 815, 1233, 1395, 1467, 2055, 2445, 4247, 5053, 6165, 7335, 12741, 15159, 21235, 22331, 25265, 38223, 45477, 63705, 66993, 75795, 111655, 191115, 200979, 227385, 334965, 692261, 1004895, 2076783, 3461305, 6230349, 10383915, 31151745]

約数ペア:

[(1, 31151745), (3, 10383915), (5, 6230349), (9, 3461305), (15, 2076783), (31, 1004895), (45, 692261), (93, 334965), (137, 227385), (155, 200979), (163, 191115), (279, 111655), (411, 75795), (465, 66993), (489, 63705), (685, 45477), (815, 38223), (1233, 25265), (1395, 22331), (1467, 21235), (2055, 15159), (2445, 12741), (4247, 7335), (5053, 6165)]