28113660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{499}}^1$

素因数の和:827

約数の個数: 72

約数和(自身を含む): 85722000

約数和(自身を除く): 57608340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 313, 499, 626, 939, 998, 1252, 1497, 1565, 1878, 1996, 2495, 2817, 2994, 3130, 3756, 4491, 4695, 4990, 5634, 5988, 6260, 7485, 8982, 9390, 9980, 11268, 14085, 14970, 17964, 18780, 22455, 28170, 29940, 44910, 56340, 89820, 156187, 312374, 468561, 624748, 780935, 937122, 1405683, 1561870, 1874244, 2342805, 2811366, 3123740, 4685610, 5622732, 7028415, 9371220, 14056830, 28113660]

約数ペア:

[(1, 28113660), (2, 14056830), (3, 9371220), (4, 7028415), (5, 5622732), (6, 4685610), (9, 3123740), (10, 2811366), (12, 2342805), (15, 1874244), (18, 1561870), (20, 1405683), (30, 937122), (36, 780935), (45, 624748), (60, 468561), (90, 312374), (180, 156187), (313, 89820), (499, 56340), (626, 44910), (939, 29940), (998, 28170), (1252, 22455), (1497, 18780), (1565, 17964), (1878, 14970), (1996, 14085), (2495, 11268), (2817, 9980), (2994, 9390), (3130, 8982), (3756, 7485), (4491, 6260), (4695, 5988), (4990, 5634)]