28508090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219293}}^1$

素因数の和:219313

約数の個数: 16

約数和(自身を含む): 55262088

約数和(自身を除く): 26753998

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 219293, 438586, 1096465, 2192930, 2850809, 5701618, 14254045, 28508090]

約数ペア:

[(1, 28508090), (2, 14254045), (5, 5701618), (10, 2850809), (13, 2192930), (26, 1096465), (65, 438586), (130, 219293)]