68156140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{262139}}^1$

素因数の和:262161

約数の個数: 24

約数和(自身を含む): 154138320

約数和(自身を除く): 85982180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 262139, 524278, 1048556, 1310695, 2621390, 3407807, 5242780, 6815614, 13631228, 17039035, 34078070, 68156140]

約数ペア:

[(1, 68156140), (2, 34078070), (4, 17039035), (5, 13631228), (10, 6815614), (13, 5242780), (20, 3407807), (26, 2621390), (52, 1310695), (65, 1048556), (130, 524278), (260, 262139)]