18787560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:399

約数の個数: 128

約数和(自身を含む): 63106560

約数和(自身を除く): 44319000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 43, 44, 55, 60, 66, 86, 88, 110, 120, 129, 132, 165, 172, 215, 220, 258, 264, 330, 331, 344, 430, 440, 473, 516, 645, 660, 662, 860, 946, 993, 1032, 1290, 1320, 1324, 1419, 1655, 1720, 1892, 1986, 2365, 2580, 2648, 2838, 3310, 3641, 3784, 3972, 4730, 4965, 5160, 5676, 6620, 7095, 7282, 7944, 9460, 9930, 10923, 11352, 13240, 14190, 14233, 14564, 18205, 18920, 19860, 21846, 28380, 28466, 29128, 36410, 39720, 42699, 43692, 54615, 56760, 56932, 71165, 72820, 85398, 87384, 109230, 113864, 142330, 145640, 156563, 170796, 213495, 218460, 284660, 313126, 341592, 426990, 436920, 469689, 569320, 626252, 782815, 853980, 939378, 1252504, 1565630, 1707960, 1878756, 2348445, 3131260, 3757512, 4696890, 6262520, 9393780, 18787560]

約数ペア:

[(1, 18787560), (2, 9393780), (3, 6262520), (4, 4696890), (5, 3757512), (6, 3131260), (8, 2348445), (10, 1878756), (11, 1707960), (12, 1565630), (15, 1252504), (20, 939378), (22, 853980), (24, 782815), (30, 626252), (33, 569320), (40, 469689), (43, 436920), (44, 426990), (55, 341592), (60, 313126), (66, 284660), (86, 218460), (88, 213495), (110, 170796), (120, 156563), (129, 145640), (132, 142330), (165, 113864), (172, 109230), (215, 87384), (220, 85398), (258, 72820), (264, 71165), (330, 56932), (331, 56760), (344, 54615), (430, 43692), (440, 42699), (473, 39720), (516, 36410), (645, 29128), (660, 28466), (662, 28380), (860, 21846), (946, 19860), (993, 18920), (1032, 18205), (1290, 14564), (1320, 14233), (1324, 14190), (1419, 13240), (1655, 11352), (1720, 10923), (1892, 9930), (1986, 9460), (2365, 7944), (2580, 7282), (2648, 7095), (2838, 6620), (3310, 5676), (3641, 5160), (3784, 4965), (3972, 4730)]