20227500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 180

約数和(自身を含む): 68228160

約数和(自身を除く): 48000660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 29, 30, 31, 36, 45, 50, 58, 60, 62, 75, 87, 90, 93, 100, 116, 124, 125, 145, 150, 155, 174, 180, 186, 225, 250, 261, 279, 290, 300, 310, 348, 372, 375, 435, 450, 465, 500, 522, 558, 580, 620, 625, 725, 750, 775, 870, 899, 900, 930, 1044, 1116, 1125, 1250, 1305, 1395, 1450, 1500, 1550, 1740, 1798, 1860, 1875, 2175, 2250, 2325, 2500, 2610, 2697, 2790, 2900, 3100, 3596, 3625, 3750, 3875, 4350, 4495, 4500, 4650, 5220, 5394, 5580, 5625, 6525, 6975, 7250, 7500, 7750, 8091, 8700, 8990, 9300, 10788, 10875, 11250, 11625, 13050, 13485, 13950, 14500, 15500, 16182, 17980, 18125, 19375, 21750, 22475, 22500, 23250, 26100, 26970, 27900, 32364, 32625, 34875, 36250, 38750, 40455, 43500, 44950, 46500, 53940, 54375, 58125, 65250, 67425, 69750, 72500, 77500, 80910, 89900, 108750, 112375, 116250, 130500, 134850, 139500, 161820, 163125, 174375, 202275, 217500, 224750, 232500, 269700, 326250, 337125, 348750, 404550, 449500, 561875, 652500, 674250, 697500, 809100, 1011375, 1123750, 1348500, 1685625, 2022750, 2247500, 3371250, 4045500, 5056875, 6742500, 10113750, 20227500]

約数ペア:

[(1, 20227500), (2, 10113750), (3, 6742500), (4, 5056875), (5, 4045500), (6, 3371250), (9, 2247500), (10, 2022750), (12, 1685625), (15, 1348500), (18, 1123750), (20, 1011375), (25, 809100), (29, 697500), (30, 674250), (31, 652500), (36, 561875), (45, 449500), (50, 404550), (58, 348750), (60, 337125), (62, 326250), (75, 269700), (87, 232500), (90, 224750), (93, 217500), (100, 202275), (116, 174375), (124, 163125), (125, 161820), (145, 139500), (150, 134850), (155, 130500), (174, 116250), (180, 112375), (186, 108750), (225, 89900), (250, 80910), (261, 77500), (279, 72500), (290, 69750), (300, 67425), (310, 65250), (348, 58125), (372, 54375), (375, 53940), (435, 46500), (450, 44950), (465, 43500), (500, 40455), (522, 38750), (558, 36250), (580, 34875), (620, 32625), (625, 32364), (725, 27900), (750, 26970), (775, 26100), (870, 23250), (899, 22500), (900, 22475), (930, 21750), (1044, 19375), (1116, 18125), (1125, 17980), (1250, 16182), (1305, 15500), (1395, 14500), (1450, 13950), (1500, 13485), (1550, 13050), (1740, 11625), (1798, 11250), (1860, 10875), (1875, 10788), (2175, 9300), (2250, 8990), (2325, 8700), (2500, 8091), (2610, 7750), (2697, 7500), (2790, 7250), (2900, 6975), (3100, 6525), (3596, 5625), (3625, 5580), (3750, 5394), (3875, 5220), (4350, 4650), (4495, 4500)]