20618880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10739}}^1$

素因数の和:10761

約数の個数: 64

約数和(自身を含む): 65728800

約数和(自身を除く): 45109920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10739, 21478, 32217, 42956, 53695, 64434, 85912, 107390, 128868, 161085, 171824, 214780, 257736, 322170, 343648, 429560, 515472, 644340, 687296, 859120, 1030944, 1288680, 1374592, 1718240, 2061888, 2577360, 3436480, 4123776, 5154720, 6872960, 10309440, 20618880]

約数ペア:

[(1, 20618880), (2, 10309440), (3, 6872960), (4, 5154720), (5, 4123776), (6, 3436480), (8, 2577360), (10, 2061888), (12, 1718240), (15, 1374592), (16, 1288680), (20, 1030944), (24, 859120), (30, 687296), (32, 644340), (40, 515472), (48, 429560), (60, 343648), (64, 322170), (80, 257736), (96, 214780), (120, 171824), (128, 161085), (160, 128868), (192, 107390), (240, 85912), (320, 64434), (384, 53695), (480, 42956), (640, 32217), (960, 21478), (1920, 10739)]