20012850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:353

約数の個数: 144

約数和(自身を含む): 63370944

約数和(自身を除く): 43358094

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 25, 26, 30, 33, 39, 45, 50, 55, 65, 66, 75, 78, 90, 99, 110, 117, 130, 143, 150, 165, 195, 198, 225, 234, 275, 286, 311, 325, 330, 390, 429, 450, 495, 550, 585, 622, 650, 715, 825, 858, 933, 975, 990, 1170, 1287, 1430, 1555, 1650, 1866, 1950, 2145, 2475, 2574, 2799, 2925, 3110, 3421, 3575, 4043, 4290, 4665, 4950, 5598, 5850, 6435, 6842, 7150, 7775, 8086, 9330, 10263, 10725, 12129, 12870, 13995, 15550, 17105, 20215, 20526, 21450, 23325, 24258, 27990, 30789, 32175, 34210, 36387, 40430, 44473, 46650, 51315, 60645, 61578, 64350, 69975, 72774, 85525, 88946, 101075, 102630, 121290, 133419, 139950, 153945, 171050, 181935, 202150, 222365, 256575, 266838, 303225, 307890, 363870, 400257, 444730, 513150, 606450, 667095, 769725, 800514, 909675, 1111825, 1334190, 1539450, 1819350, 2001285, 2223650, 3335475, 4002570, 6670950, 10006425, 20012850]

約数ペア:

[(1, 20012850), (2, 10006425), (3, 6670950), (5, 4002570), (6, 3335475), (9, 2223650), (10, 2001285), (11, 1819350), (13, 1539450), (15, 1334190), (18, 1111825), (22, 909675), (25, 800514), (26, 769725), (30, 667095), (33, 606450), (39, 513150), (45, 444730), (50, 400257), (55, 363870), (65, 307890), (66, 303225), (75, 266838), (78, 256575), (90, 222365), (99, 202150), (110, 181935), (117, 171050), (130, 153945), (143, 139950), (150, 133419), (165, 121290), (195, 102630), (198, 101075), (225, 88946), (234, 85525), (275, 72774), (286, 69975), (311, 64350), (325, 61578), (330, 60645), (390, 51315), (429, 46650), (450, 44473), (495, 40430), (550, 36387), (585, 34210), (622, 32175), (650, 30789), (715, 27990), (825, 24258), (858, 23325), (933, 21450), (975, 20526), (990, 20215), (1170, 17105), (1287, 15550), (1430, 13995), (1555, 12870), (1650, 12129), (1866, 10725), (1950, 10263), (2145, 9330), (2475, 8086), (2574, 7775), (2799, 7150), (2925, 6842), (3110, 6435), (3421, 5850), (3575, 5598), (4043, 4950), (4290, 4665)]