79671980

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{12809}}^1$

素因数の和:13129

約数の個数: 24

約数和(自身を含む): 167862240

約数和(自身を除く): 88190260

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 12809, 25618, 51236, 64045, 128090, 256180, 3983599, 7967198, 15934396, 19917995, 39835990, 79671980]

約数ペア:

[(1, 79671980), (2, 39835990), (4, 19917995), (5, 15934396), (10, 7967198), (20, 3983599), (311, 256180), (622, 128090), (1244, 64045), (1555, 51236), (3110, 25618), (6220, 12809)]