18404640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{12781}}^1$

素因数の和:12802

約数の個数: 72

約数和(自身を含む): 62810748

約数和(自身を除く): 44406108

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 12781, 25562, 38343, 51124, 63905, 76686, 102248, 115029, 127810, 153372, 191715, 204496, 230058, 255620, 306744, 383430, 408992, 460116, 511240, 575145, 613488, 766860, 920232, 1022480, 1150290, 1226976, 1533720, 1840464, 2044960, 2300580, 3067440, 3680928, 4601160, 6134880, 9202320, 18404640]

約数ペア:

[(1, 18404640), (2, 9202320), (3, 6134880), (4, 4601160), (5, 3680928), (6, 3067440), (8, 2300580), (9, 2044960), (10, 1840464), (12, 1533720), (15, 1226976), (16, 1150290), (18, 1022480), (20, 920232), (24, 766860), (30, 613488), (32, 575145), (36, 511240), (40, 460116), (45, 408992), (48, 383430), (60, 306744), (72, 255620), (80, 230058), (90, 204496), (96, 191715), (120, 153372), (144, 127810), (160, 115029), (180, 102248), (240, 76686), (288, 63905), (360, 51124), (480, 38343), (720, 25562), (1440, 12781)]