66248780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{254803}}^1$

素因数の和:254825

約数の個数: 24

約数和(自身を含む): 149824752

約数和(自身を除く): 83575972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 254803, 509606, 1019212, 1274015, 2548030, 3312439, 5096060, 6624878, 13249756, 16562195, 33124390, 66248780]

約数ペア:

[(1, 66248780), (2, 33124390), (4, 16562195), (5, 13249756), (10, 6624878), (13, 5096060), (20, 3312439), (26, 2548030), (52, 1274015), (65, 1019212), (130, 509606), (260, 254803)]