20605080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:265

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 45750120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 31, 40, 58, 60, 62, 87, 93, 116, 120, 124, 145, 155, 174, 186, 191, 232, 248, 290, 310, 348, 372, 382, 435, 465, 573, 580, 620, 696, 744, 764, 870, 899, 930, 955, 1146, 1160, 1240, 1528, 1740, 1798, 1860, 1910, 2292, 2697, 2865, 3480, 3596, 3720, 3820, 4495, 4584, 5394, 5539, 5730, 5921, 7192, 7640, 8990, 10788, 11078, 11460, 11842, 13485, 16617, 17763, 17980, 21576, 22156, 22920, 23684, 26970, 27695, 29605, 33234, 35526, 35960, 44312, 47368, 53940, 55390, 59210, 66468, 71052, 83085, 88815, 107880, 110780, 118420, 132936, 142104, 166170, 171709, 177630, 221560, 236840, 332340, 343418, 355260, 515127, 664680, 686836, 710520, 858545, 1030254, 1373672, 1717090, 2060508, 2575635, 3434180, 4121016, 5151270, 6868360, 10302540, 20605080]

約数ペア:

[(1, 20605080), (2, 10302540), (3, 6868360), (4, 5151270), (5, 4121016), (6, 3434180), (8, 2575635), (10, 2060508), (12, 1717090), (15, 1373672), (20, 1030254), (24, 858545), (29, 710520), (30, 686836), (31, 664680), (40, 515127), (58, 355260), (60, 343418), (62, 332340), (87, 236840), (93, 221560), (116, 177630), (120, 171709), (124, 166170), (145, 142104), (155, 132936), (174, 118420), (186, 110780), (191, 107880), (232, 88815), (248, 83085), (290, 71052), (310, 66468), (348, 59210), (372, 55390), (382, 53940), (435, 47368), (465, 44312), (573, 35960), (580, 35526), (620, 33234), (696, 29605), (744, 27695), (764, 26970), (870, 23684), (899, 22920), (930, 22156), (955, 21576), (1146, 17980), (1160, 17763), (1240, 16617), (1528, 13485), (1740, 11842), (1798, 11460), (1860, 11078), (1910, 10788), (2292, 8990), (2697, 7640), (2865, 7192), (3480, 5921), (3596, 5730), (3720, 5539), (3820, 5394), (4495, 4584)]