18681198380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71850763}}^1$

素因数の和:71850785

約数の個数: 24

約数和(自身を含む): 42248249232

約数和(自身を除く): 23567050852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71850763, 143701526, 287403052, 359253815, 718507630, 934059919, 1437015260, 1868119838, 3736239676, 4670299595, 9340599190, 18681198380]

約数ペア:

[(1, 18681198380), (2, 9340599190), (4, 4670299595), (5, 3736239676), (10, 1868119838), (13, 1437015260), (20, 934059919), (26, 718507630), (52, 359253815), (65, 287403052), (130, 143701526), (260, 71850763)]