19957440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20789}}^1$

素因数の和:20809

約数の個数: 56

約数和(自身を含む): 63367920

約数和(自身を除く): 43410480

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, 160, 192, 240, 320, 480, 960, 20789, 41578, 62367, 83156, 103945, 124734, 166312, 207890, 249468, 311835, 332624, 415780, 498936, 623670, 665248, 831560, 997872, 1247340, 1330496, 1663120, 1995744, 2494680, 3326240, 3991488, 4989360, 6652480, 9978720, 19957440]

約数ペア:

[(1, 19957440), (2, 9978720), (3, 6652480), (4, 4989360), (5, 3991488), (6, 3326240), (8, 2494680), (10, 1995744), (12, 1663120), (15, 1330496), (16, 1247340), (20, 997872), (24, 831560), (30, 665248), (32, 623670), (40, 498936), (48, 415780), (60, 332624), (64, 311835), (80, 249468), (96, 207890), (120, 166312), (160, 124734), (192, 103945), (240, 83156), (320, 62367), (480, 41578), (960, 20789)]