90131080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:303

約数の個数: 96

約数和(自身を含む): 223992000

約数和(自身を除く): 133860920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 169, 199, 260, 268, 335, 338, 398, 520, 536, 670, 676, 796, 845, 871, 995, 1340, 1352, 1592, 1690, 1742, 1990, 2587, 2680, 3380, 3484, 3980, 4355, 5174, 6760, 6968, 7960, 8710, 10348, 11323, 12935, 13333, 17420, 20696, 22646, 25870, 26666, 33631, 34840, 45292, 51740, 53332, 56615, 66665, 67262, 90584, 103480, 106664, 113230, 133330, 134524, 168155, 173329, 226460, 266660, 269048, 336310, 346658, 452920, 533320, 672620, 693316, 866645, 1345240, 1386632, 1733290, 2253277, 3466580, 4506554, 6933160, 9013108, 11266385, 18026216, 22532770, 45065540, 90131080]

約数ペア:

[(1, 90131080), (2, 45065540), (4, 22532770), (5, 18026216), (8, 11266385), (10, 9013108), (13, 6933160), (20, 4506554), (26, 3466580), (40, 2253277), (52, 1733290), (65, 1386632), (67, 1345240), (104, 866645), (130, 693316), (134, 672620), (169, 533320), (199, 452920), (260, 346658), (268, 336310), (335, 269048), (338, 266660), (398, 226460), (520, 173329), (536, 168155), (670, 134524), (676, 133330), (796, 113230), (845, 106664), (871, 103480), (995, 90584), (1340, 67262), (1352, 66665), (1592, 56615), (1690, 53332), (1742, 51740), (1990, 45292), (2587, 34840), (2680, 33631), (3380, 26666), (3484, 25870), (3980, 22646), (4355, 20696), (5174, 17420), (6760, 13333), (6968, 12935), (7960, 11323), (8710, 10348)]