79869140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307189}}^1$

素因数の和:307211

約数の個数: 24

約数和(自身を含む): 180627720

約数和(自身を除く): 100758580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307189, 614378, 1228756, 1535945, 3071890, 3993457, 6143780, 7986914, 15973828, 19967285, 39934570, 79869140]

約数ペア:

[(1, 79869140), (2, 39934570), (4, 19967285), (5, 15973828), (10, 7986914), (13, 6143780), (20, 3993457), (26, 3071890), (52, 1535945), (65, 1228756), (130, 614378), (260, 307189)]