20704050

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:488

約数の個数: 72

約数和(自身を含む): 56194320

約数和(自身を除く): 35490270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 139, 150, 225, 278, 331, 417, 450, 662, 695, 834, 993, 1251, 1390, 1655, 1986, 2085, 2502, 2979, 3310, 3475, 4170, 4965, 5958, 6255, 6950, 8275, 9930, 10425, 12510, 14895, 16550, 20850, 24825, 29790, 31275, 46009, 49650, 62550, 74475, 92018, 138027, 148950, 230045, 276054, 414081, 460090, 690135, 828162, 1150225, 1380270, 2070405, 2300450, 3450675, 4140810, 6901350, 10352025, 20704050]

約数ペア:

[(1, 20704050), (2, 10352025), (3, 6901350), (5, 4140810), (6, 3450675), (9, 2300450), (10, 2070405), (15, 1380270), (18, 1150225), (25, 828162), (30, 690135), (45, 460090), (50, 414081), (75, 276054), (90, 230045), (139, 148950), (150, 138027), (225, 92018), (278, 74475), (331, 62550), (417, 49650), (450, 46009), (662, 31275), (695, 29790), (834, 24825), (993, 20850), (1251, 16550), (1390, 14895), (1655, 12510), (1986, 10425), (2085, 9930), (2502, 8275), (2979, 6950), (3310, 6255), (3475, 5958), (4170, 4965)]