61687620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{881}}^1$

素因数の和:1285

約数の個数: 72

約数和(自身を含む): 187813080

約数和(自身を除く): 126125460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 881, 1167, 1556, 1762, 1945, 2334, 2643, 3501, 3524, 3890, 4405, 4668, 5286, 5835, 7002, 7780, 7929, 8810, 10572, 11670, 13215, 14004, 15858, 17505, 17620, 23340, 26430, 31716, 35010, 39645, 52860, 70020, 79290, 158580, 342709, 685418, 1028127, 1370836, 1713545, 2056254, 3084381, 3427090, 4112508, 5140635, 6168762, 6854180, 10281270, 12337524, 15421905, 20562540, 30843810, 61687620]

約数ペア:

[(1, 61687620), (2, 30843810), (3, 20562540), (4, 15421905), (5, 12337524), (6, 10281270), (9, 6854180), (10, 6168762), (12, 5140635), (15, 4112508), (18, 3427090), (20, 3084381), (30, 2056254), (36, 1713545), (45, 1370836), (60, 1028127), (90, 685418), (180, 342709), (389, 158580), (778, 79290), (881, 70020), (1167, 52860), (1556, 39645), (1762, 35010), (1945, 31716), (2334, 26430), (2643, 23340), (3501, 17620), (3524, 17505), (3890, 15858), (4405, 14004), (4668, 13215), (5286, 11670), (5835, 10572), (7002, 8810), (7780, 7929)]