20797200

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:186

約数の個数: 180

約数和(自身を含む): 74208420

約数和(自身を除く): 53411220

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 53, 60, 72, 75, 80, 90, 100, 106, 109, 120, 144, 150, 159, 180, 200, 212, 218, 225, 240, 265, 300, 318, 327, 360, 400, 424, 436, 450, 477, 530, 545, 600, 636, 654, 720, 795, 848, 872, 900, 954, 981, 1060, 1090, 1200, 1272, 1308, 1325, 1590, 1635, 1744, 1800, 1908, 1962, 2120, 2180, 2385, 2544, 2616, 2650, 2725, 3180, 3270, 3600, 3816, 3924, 3975, 4240, 4360, 4770, 4905, 5232, 5300, 5450, 5777, 6360, 6540, 7632, 7848, 7950, 8175, 8720, 9540, 9810, 10600, 10900, 11554, 11925, 12720, 13080, 15696, 15900, 16350, 17331, 19080, 19620, 21200, 21800, 23108, 23850, 24525, 26160, 28885, 31800, 32700, 34662, 38160, 39240, 43600, 46216, 47700, 49050, 51993, 57770, 63600, 65400, 69324, 78480, 86655, 92432, 95400, 98100, 103986, 115540, 130800, 138648, 144425, 173310, 190800, 196200, 207972, 231080, 259965, 277296, 288850, 346620, 392400, 415944, 433275, 462160, 519930, 577700, 693240, 831888, 866550, 1039860, 1155400, 1299825, 1386480, 1733100, 2079720, 2310800, 2599650, 3466200, 4159440, 5199300, 6932400, 10398600, 20797200]

約数ペア:

[(1, 20797200), (2, 10398600), (3, 6932400), (4, 5199300), (5, 4159440), (6, 3466200), (8, 2599650), (9, 2310800), (10, 2079720), (12, 1733100), (15, 1386480), (16, 1299825), (18, 1155400), (20, 1039860), (24, 866550), (25, 831888), (30, 693240), (36, 577700), (40, 519930), (45, 462160), (48, 433275), (50, 415944), (53, 392400), (60, 346620), (72, 288850), (75, 277296), (80, 259965), (90, 231080), (100, 207972), (106, 196200), (109, 190800), (120, 173310), (144, 144425), (150, 138648), (159, 130800), (180, 115540), (200, 103986), (212, 98100), (218, 95400), (225, 92432), (240, 86655), (265, 78480), (300, 69324), (318, 65400), (327, 63600), (360, 57770), (400, 51993), (424, 49050), (436, 47700), (450, 46216), (477, 43600), (530, 39240), (545, 38160), (600, 34662), (636, 32700), (654, 31800), (720, 28885), (795, 26160), (848, 24525), (872, 23850), (900, 23108), (954, 21800), (981, 21200), (1060, 19620), (1090, 19080), (1200, 17331), (1272, 16350), (1308, 15900), (1325, 15696), (1590, 13080), (1635, 12720), (1744, 11925), (1800, 11554), (1908, 10900), (1962, 10600), (2120, 9810), (2180, 9540), (2385, 8720), (2544, 8175), (2616, 7950), (2650, 7848), (2725, 7632), (3180, 6540), (3270, 6360), (3600, 5777), (3816, 5450), (3924, 5300), (3975, 5232), (4240, 4905), (4360, 4770)]