20108280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9857}}^1$

素因数の和:9888

約数の個数: 64

約数和(自身を含む): 63879840

約数和(自身を除く): 43771560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 9857, 19714, 29571, 39428, 49285, 59142, 78856, 98570, 118284, 147855, 167569, 197140, 236568, 295710, 335138, 394280, 502707, 591420, 670276, 837845, 1005414, 1182840, 1340552, 1675690, 2010828, 2513535, 3351380, 4021656, 5027070, 6702760, 10054140, 20108280]

約数ペア:

[(1, 20108280), (2, 10054140), (3, 6702760), (4, 5027070), (5, 4021656), (6, 3351380), (8, 2513535), (10, 2010828), (12, 1675690), (15, 1340552), (17, 1182840), (20, 1005414), (24, 837845), (30, 670276), (34, 591420), (40, 502707), (51, 394280), (60, 335138), (68, 295710), (85, 236568), (102, 197140), (120, 167569), (136, 147855), (170, 118284), (204, 98570), (255, 78856), (340, 59142), (408, 49285), (510, 39428), (680, 29571), (1020, 19714), (2040, 9857)]