28453685

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:405

約数の個数: 24

約数和(自身を含む): 37384704

約数和(自身を除く): 8931019

約数列:

[1, 5, 13, 65, 151, 169, 223, 755, 845, 1115, 1963, 2899, 9815, 14495, 25519, 33673, 37687, 127595, 168365, 188435, 437749, 2188745, 5690737, 28453685]

約数ペア:

[(1, 28453685), (5, 5690737), (13, 2188745), (65, 437749), (151, 188435), (169, 168365), (223, 127595), (755, 37687), (845, 33673), (1115, 25519), (1963, 14495), (2899, 9815)]