201518680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{929}}^1$

素因数の和:997

約数の個数: 128

約数和(自身を含む): 542376000

約数和(自身を除く): 340857320

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 29, 34, 40, 44, 55, 58, 68, 85, 88, 110, 116, 136, 145, 170, 187, 220, 232, 290, 319, 340, 374, 440, 493, 580, 638, 680, 748, 929, 935, 986, 1160, 1276, 1496, 1595, 1858, 1870, 1972, 2465, 2552, 3190, 3716, 3740, 3944, 4645, 4930, 5423, 6380, 7432, 7480, 9290, 9860, 10219, 10846, 12760, 15793, 18580, 19720, 20438, 21692, 26941, 27115, 31586, 37160, 40876, 43384, 51095, 53882, 54230, 63172, 78965, 81752, 102190, 107764, 108460, 126344, 134705, 157930, 173723, 204380, 215528, 216920, 269410, 296351, 315860, 347446, 408760, 457997, 538820, 592702, 631720, 694892, 868615, 915994, 1077640, 1185404, 1389784, 1481755, 1737230, 1831988, 2289985, 2370808, 2963510, 3474460, 3663976, 4579970, 5037967, 5927020, 6948920, 9159940, 10075934, 11854040, 18319880, 20151868, 25189835, 40303736, 50379670, 100759340, 201518680]

約数ペア:

[(1, 201518680), (2, 100759340), (4, 50379670), (5, 40303736), (8, 25189835), (10, 20151868), (11, 18319880), (17, 11854040), (20, 10075934), (22, 9159940), (29, 6948920), (34, 5927020), (40, 5037967), (44, 4579970), (55, 3663976), (58, 3474460), (68, 2963510), (85, 2370808), (88, 2289985), (110, 1831988), (116, 1737230), (136, 1481755), (145, 1389784), (170, 1185404), (187, 1077640), (220, 915994), (232, 868615), (290, 694892), (319, 631720), (340, 592702), (374, 538820), (440, 457997), (493, 408760), (580, 347446), (638, 315860), (680, 296351), (748, 269410), (929, 216920), (935, 215528), (986, 204380), (1160, 173723), (1276, 157930), (1496, 134705), (1595, 126344), (1858, 108460), (1870, 107764), (1972, 102190), (2465, 81752), (2552, 78965), (3190, 63172), (3716, 54230), (3740, 53882), (3944, 51095), (4645, 43384), (4930, 40876), (5423, 37160), (6380, 31586), (7432, 27115), (7480, 26941), (9290, 21692), (9860, 20438), (10219, 19720), (10846, 18580), (12760, 15793)]