12781644860

素因数分解:

$2^2\times 5^1\times {\mathrm{7681}}^1\times {\mathrm{83203}}^1$

素因数の和:90893

約数の個数: 24

約数和(自身を含む): 26845271376

約数和(自身を除く): 14063626516

約数列:

[1, 2, 4, 5, 10, 20, 7681, 15362, 30724, 38405, 76810, 83203, 153620, 166406, 332812, 416015, 832030, 1664060, 639082243, 1278164486, 2556328972, 3195411215, 6390822430, 12781644860]

約数ペア:

[(1, 12781644860), (2, 6390822430), (4, 3195411215), (5, 2556328972), (10, 1278164486), (20, 639082243), (7681, 1664060), (15362, 832030), (30724, 416015), (38405, 332812), (76810, 166406), (83203, 153620)]