20711250

素因数分解:

$2^1\times 3^2\times 5^4\times 7^1\times {\mathrm{263}}^1$

素因数の和:298

約数の個数: 120

約数和(自身を含む): 64329408

約数和(自身を除く): 43618158

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 125, 126, 150, 175, 210, 225, 250, 263, 315, 350, 375, 450, 525, 526, 625, 630, 750, 789, 875, 1050, 1125, 1250, 1315, 1575, 1578, 1750, 1841, 1875, 2250, 2367, 2625, 2630, 3150, 3682, 3750, 3945, 4375, 4734, 5250, 5523, 5625, 6575, 7875, 7890, 8750, 9205, 11046, 11250, 11835, 13125, 13150, 15750, 16569, 18410, 19725, 23670, 26250, 27615, 32875, 33138, 39375, 39450, 46025, 55230, 59175, 65750, 78750, 82845, 92050, 98625, 118350, 138075, 164375, 165690, 197250, 230125, 276150, 295875, 328750, 414225, 460250, 493125, 591750, 690375, 828450, 986250, 1150625, 1380750, 1479375, 2071125, 2301250, 2958750, 3451875, 4142250, 6903750, 10355625, 20711250]

約数ペア:

[(1, 20711250), (2, 10355625), (3, 6903750), (5, 4142250), (6, 3451875), (7, 2958750), (9, 2301250), (10, 2071125), (14, 1479375), (15, 1380750), (18, 1150625), (21, 986250), (25, 828450), (30, 690375), (35, 591750), (42, 493125), (45, 460250), (50, 414225), (63, 328750), (70, 295875), (75, 276150), (90, 230125), (105, 197250), (125, 165690), (126, 164375), (150, 138075), (175, 118350), (210, 98625), (225, 92050), (250, 82845), (263, 78750), (315, 65750), (350, 59175), (375, 55230), (450, 46025), (525, 39450), (526, 39375), (625, 33138), (630, 32875), (750, 27615), (789, 26250), (875, 23670), (1050, 19725), (1125, 18410), (1250, 16569), (1315, 15750), (1575, 13150), (1578, 13125), (1750, 11835), (1841, 11250), (1875, 11046), (2250, 9205), (2367, 8750), (2625, 7890), (2630, 7875), (3150, 6575), (3682, 5625), (3750, 5523), (3945, 5250), (4375, 4734)]