28385820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{881}}^1$

素因数の和:1075

約数の個数: 72

約数和(自身を含む): 86682960

約数和(自身を除く): 58297140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 716, 881, 895, 1074, 1611, 1762, 1790, 2148, 2643, 2685, 3222, 3524, 3580, 4405, 5286, 5370, 6444, 7929, 8055, 8810, 10572, 10740, 13215, 15858, 16110, 17620, 26430, 31716, 32220, 39645, 52860, 79290, 157699, 158580, 315398, 473097, 630796, 788495, 946194, 1419291, 1576990, 1892388, 2365485, 2838582, 3153980, 4730970, 5677164, 7096455, 9461940, 14192910, 28385820]

約数ペア:

[(1, 28385820), (2, 14192910), (3, 9461940), (4, 7096455), (5, 5677164), (6, 4730970), (9, 3153980), (10, 2838582), (12, 2365485), (15, 1892388), (18, 1576990), (20, 1419291), (30, 946194), (36, 788495), (45, 630796), (60, 473097), (90, 315398), (179, 158580), (180, 157699), (358, 79290), (537, 52860), (716, 39645), (881, 32220), (895, 31716), (1074, 26430), (1611, 17620), (1762, 16110), (1790, 15858), (2148, 13215), (2643, 10740), (2685, 10572), (3222, 8810), (3524, 8055), (3580, 7929), (4405, 6444), (5286, 5370)]