20606820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{911}}^1$

素因数の和:965

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 43743900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 78, 87, 116, 130, 145, 156, 174, 195, 260, 290, 348, 377, 390, 435, 580, 754, 780, 870, 911, 1131, 1508, 1740, 1822, 1885, 2262, 2733, 3644, 3770, 4524, 4555, 5466, 5655, 7540, 9110, 10932, 11310, 11843, 13665, 18220, 22620, 23686, 26419, 27330, 35529, 47372, 52838, 54660, 59215, 71058, 79257, 105676, 118430, 132095, 142116, 158514, 177645, 236860, 264190, 317028, 343447, 355290, 396285, 528380, 686894, 710580, 792570, 1030341, 1373788, 1585140, 1717235, 2060682, 3434470, 4121364, 5151705, 6868940, 10303410, 20606820]

約数ペア:

[(1, 20606820), (2, 10303410), (3, 6868940), (4, 5151705), (5, 4121364), (6, 3434470), (10, 2060682), (12, 1717235), (13, 1585140), (15, 1373788), (20, 1030341), (26, 792570), (29, 710580), (30, 686894), (39, 528380), (52, 396285), (58, 355290), (60, 343447), (65, 317028), (78, 264190), (87, 236860), (116, 177645), (130, 158514), (145, 142116), (156, 132095), (174, 118430), (195, 105676), (260, 79257), (290, 71058), (348, 59215), (377, 54660), (390, 52838), (435, 47372), (580, 35529), (754, 27330), (780, 26419), (870, 23686), (911, 22620), (1131, 18220), (1508, 13665), (1740, 11843), (1822, 11310), (1885, 10932), (2262, 9110), (2733, 7540), (3644, 5655), (3770, 5466), (4524, 4555)]