405520020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1297}}^1$

素因数の和:1511

約数の個数: 120

約数和(自身を含む): 1279708584

約数和(自身を除く): 874188564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 193, 270, 324, 386, 405, 540, 579, 772, 810, 965, 1158, 1297, 1620, 1737, 1930, 2316, 2594, 2895, 3474, 3860, 3891, 5188, 5211, 5790, 6485, 6948, 7782, 8685, 10422, 11580, 11673, 12970, 15564, 15633, 17370, 19455, 20844, 23346, 25940, 26055, 31266, 34740, 35019, 38910, 46692, 52110, 58365, 62532, 70038, 77820, 78165, 104220, 105057, 116730, 140076, 156330, 175095, 210114, 233460, 250321, 312660, 350190, 420228, 500642, 525285, 700380, 750963, 1001284, 1050570, 1251605, 1501926, 2101140, 2252889, 2503210, 3003852, 3754815, 4505778, 5006420, 6758667, 7509630, 9011556, 11264445, 13517334, 15019260, 20276001, 22528890, 27034668, 33793335, 40552002, 45057780, 67586670, 81104004, 101380005, 135173340, 202760010, 405520020]

約数ペア:

[(1, 405520020), (2, 202760010), (3, 135173340), (4, 101380005), (5, 81104004), (6, 67586670), (9, 45057780), (10, 40552002), (12, 33793335), (15, 27034668), (18, 22528890), (20, 20276001), (27, 15019260), (30, 13517334), (36, 11264445), (45, 9011556), (54, 7509630), (60, 6758667), (81, 5006420), (90, 4505778), (108, 3754815), (135, 3003852), (162, 2503210), (180, 2252889), (193, 2101140), (270, 1501926), (324, 1251605), (386, 1050570), (405, 1001284), (540, 750963), (579, 700380), (772, 525285), (810, 500642), (965, 420228), (1158, 350190), (1297, 312660), (1620, 250321), (1737, 233460), (1930, 210114), (2316, 175095), (2594, 156330), (2895, 140076), (3474, 116730), (3860, 105057), (3891, 104220), (5188, 78165), (5211, 77820), (5790, 70038), (6485, 62532), (6948, 58365), (7782, 52110), (8685, 46692), (10422, 38910), (11580, 35019), (11673, 34740), (12970, 31266), (15564, 26055), (15633, 25940), (17370, 23346), (19455, 20844)]