63684140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{244939}}^1$

素因数の和:244961

約数の個数: 24

約数和(自身を含む): 144024720

約数和(自身を除く): 80340580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 244939, 489878, 979756, 1224695, 2449390, 3184207, 4898780, 6368414, 12736828, 15921035, 31842070, 63684140]

約数ペア:

[(1, 63684140), (2, 31842070), (4, 15921035), (5, 12736828), (10, 6368414), (13, 4898780), (20, 3184207), (26, 2449390), (52, 1224695), (65, 979756), (130, 489878), (260, 244939)]