20247240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12979}}^1$

素因数の和:13006

約数の個数: 64

約数和(自身を含む): 65419200

約数和(自身を除く): 45171960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12979, 25958, 38937, 51916, 64895, 77874, 103832, 129790, 155748, 168727, 194685, 259580, 311496, 337454, 389370, 506181, 519160, 674908, 778740, 843635, 1012362, 1349816, 1557480, 1687270, 2024724, 2530905, 3374540, 4049448, 5061810, 6749080, 10123620, 20247240]

約数ペア:

[(1, 20247240), (2, 10123620), (3, 6749080), (4, 5061810), (5, 4049448), (6, 3374540), (8, 2530905), (10, 2024724), (12, 1687270), (13, 1557480), (15, 1349816), (20, 1012362), (24, 843635), (26, 778740), (30, 674908), (39, 519160), (40, 506181), (52, 389370), (60, 337454), (65, 311496), (78, 259580), (104, 194685), (120, 168727), (130, 155748), (156, 129790), (195, 103832), (260, 77874), (312, 64895), (390, 51916), (520, 38937), (780, 25958), (1560, 12979)]