312290420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1201117}}^1$

素因数の和:1201139

約数の個数: 24

約数和(自身を含む): 706257384

約数和(自身を除く): 393966964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1201117, 2402234, 4804468, 6005585, 12011170, 15614521, 24022340, 31229042, 62458084, 78072605, 156145210, 312290420]

約数ペア:

[(1, 312290420), (2, 156145210), (4, 78072605), (5, 62458084), (10, 31229042), (13, 24022340), (20, 15614521), (26, 12011170), (52, 6005585), (65, 4804468), (130, 2402234), (260, 1201117)]