20553729000

素因数分解:

$2^3\times 3^1\times 5^3\times 7^1\times {\mathrm{978749}}^1$

素因数の和:978780

約数の個数: 128

約数和(自身を含む): 73288800000

約数和(自身を除く): 52735071000

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, 1000, 1050, 1400, 1500, 1750, 2100, 2625, 3000, 3500, 4200, 5250, 7000, 10500, 21000, 978749, 1957498, 2936247, 3914996, 4893745, 5872494, 6851243, 7829992, 9787490, 11744988, 13702486, 14681235, 19574980, 20553729, 23489976, 24468725, 27404972, 29362470, 34256215, 39149960, 41107458, 48937450, 54809944, 58724940, 68512430, 73406175, 82214916, 97874900, 102768645, 117449880, 122343625, 137024860, 146812350, 164429832, 171281075, 195749800, 205537290, 244687250, 274049720, 293624700, 342562150, 367030875, 411074580, 489374500, 513843225, 587249400, 685124300, 734061750, 822149160, 856405375, 978749000, 1027686450, 1370248600, 1468123500, 1712810750, 2055372900, 2569216125, 2936247000, 3425621500, 4110745800, 5138432250, 6851243000, 10276864500, 20553729000]

約数ペア:

[(1, 20553729000), (2, 10276864500), (3, 6851243000), (4, 5138432250), (5, 4110745800), (6, 3425621500), (7, 2936247000), (8, 2569216125), (10, 2055372900), (12, 1712810750), (14, 1468123500), (15, 1370248600), (20, 1027686450), (21, 978749000), (24, 856405375), (25, 822149160), (28, 734061750), (30, 685124300), (35, 587249400), (40, 513843225), (42, 489374500), (50, 411074580), (56, 367030875), (60, 342562150), (70, 293624700), (75, 274049720), (84, 244687250), (100, 205537290), (105, 195749800), (120, 171281075), (125, 164429832), (140, 146812350), (150, 137024860), (168, 122343625), (175, 117449880), (200, 102768645), (210, 97874900), (250, 82214916), (280, 73406175), (300, 68512430), (350, 58724940), (375, 54809944), (420, 48937450), (500, 41107458), (525, 39149960), (600, 34256215), (700, 29362470), (750, 27404972), (840, 24468725), (875, 23489976), (1000, 20553729), (1050, 19574980), (1400, 14681235), (1500, 13702486), (1750, 11744988), (2100, 9787490), (2625, 7829992), (3000, 6851243), (3500, 5872494), (4200, 4893745), (5250, 3914996), (7000, 2936247), (10500, 1957498), (21000, 978749)]