28177890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72251}}^1$

素因数の和:72274

約数の個数: 32

約数和(自身を含む): 72830016

約数和(自身を除く): 44652126

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72251, 144502, 216753, 361255, 433506, 722510, 939263, 1083765, 1878526, 2167530, 2817789, 4696315, 5635578, 9392630, 14088945, 28177890]

約数ペア:

[(1, 28177890), (2, 14088945), (3, 9392630), (5, 5635578), (6, 4696315), (10, 2817789), (13, 2167530), (15, 1878526), (26, 1083765), (30, 939263), (39, 722510), (65, 433506), (78, 361255), (130, 216753), (195, 144502), (390, 72251)]