72009880

素因数分解:

$2^3\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1901}}^1$

素因数の和:2859

約数の個数: 32

約数和(自身を含む): 162278640

約数和(自身を除く): 90268760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 947, 1894, 1901, 3788, 3802, 4735, 7576, 7604, 9470, 9505, 15208, 18940, 19010, 37880, 38020, 76040, 1800247, 3600494, 7200988, 9001235, 14401976, 18002470, 36004940, 72009880]

約数ペア:

[(1, 72009880), (2, 36004940), (4, 18002470), (5, 14401976), (8, 9001235), (10, 7200988), (20, 3600494), (40, 1800247), (947, 76040), (1894, 38020), (1901, 37880), (3788, 19010), (3802, 18940), (4735, 15208), (7576, 9505), (7604, 9470)]