72420190

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{81371}}^1$

素因数の和:81467

約数の個数: 16

約数和(自身を含む): 131822640

約数和(自身を除く): 59402450

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 81371, 162742, 406855, 813710, 7242019, 14484038, 36210095, 72420190]

約数ペア:

[(1, 72420190), (2, 36210095), (5, 14484038), (10, 7242019), (89, 813710), (178, 406855), (445, 162742), (890, 81371)]