20643000

素因数分解:

$2^3\times 3^1\times 5^3\times 7^1\times {\mathrm{983}}^1$

素因数の和:1014

約数の個数: 128

約数和(自身を含む): 73681920

約数和(自身を除く): 53038920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 200, 210, 250, 280, 300, 350, 375, 420, 500, 525, 600, 700, 750, 840, 875, 983, 1000, 1050, 1400, 1500, 1750, 1966, 2100, 2625, 2949, 3000, 3500, 3932, 4200, 4915, 5250, 5898, 6881, 7000, 7864, 9830, 10500, 11796, 13762, 14745, 19660, 20643, 21000, 23592, 24575, 27524, 29490, 34405, 39320, 41286, 49150, 55048, 58980, 68810, 73725, 82572, 98300, 103215, 117960, 122875, 137620, 147450, 165144, 172025, 196600, 206430, 245750, 275240, 294900, 344050, 368625, 412860, 491500, 516075, 589800, 688100, 737250, 825720, 860125, 983000, 1032150, 1376200, 1474500, 1720250, 2064300, 2580375, 2949000, 3440500, 4128600, 5160750, 6881000, 10321500, 20643000]

約数ペア:

[(1, 20643000), (2, 10321500), (3, 6881000), (4, 5160750), (5, 4128600), (6, 3440500), (7, 2949000), (8, 2580375), (10, 2064300), (12, 1720250), (14, 1474500), (15, 1376200), (20, 1032150), (21, 983000), (24, 860125), (25, 825720), (28, 737250), (30, 688100), (35, 589800), (40, 516075), (42, 491500), (50, 412860), (56, 368625), (60, 344050), (70, 294900), (75, 275240), (84, 245750), (100, 206430), (105, 196600), (120, 172025), (125, 165144), (140, 147450), (150, 137620), (168, 122875), (175, 117960), (200, 103215), (210, 98300), (250, 82572), (280, 73725), (300, 68810), (350, 58980), (375, 55048), (420, 49150), (500, 41286), (525, 39320), (600, 34405), (700, 29490), (750, 27524), (840, 24575), (875, 23592), (983, 21000), (1000, 20643), (1050, 19660), (1400, 14745), (1500, 13762), (1750, 11796), (1966, 10500), (2100, 9830), (2625, 7864), (2949, 7000), (3000, 6881), (3500, 5898), (3932, 5250), (4200, 4915)]