18281800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:335

約数の個数: 96

約数和(自身を含む): 47541600

約数和(自身を除く): 29259800

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 85, 95, 100, 136, 152, 170, 190, 200, 283, 323, 340, 380, 425, 475, 566, 646, 680, 760, 850, 950, 1132, 1292, 1415, 1615, 1700, 1900, 2264, 2584, 2830, 3230, 3400, 3800, 4811, 5377, 5660, 6460, 7075, 8075, 9622, 10754, 11320, 12920, 14150, 16150, 19244, 21508, 24055, 26885, 28300, 32300, 38488, 43016, 48110, 53770, 56600, 64600, 91409, 96220, 107540, 120275, 134425, 182818, 192440, 215080, 240550, 268850, 365636, 457045, 481100, 537700, 731272, 914090, 962200, 1075400, 1828180, 2285225, 3656360, 4570450, 9140900, 18281800]

約数ペア:

[(1, 18281800), (2, 9140900), (4, 4570450), (5, 3656360), (8, 2285225), (10, 1828180), (17, 1075400), (19, 962200), (20, 914090), (25, 731272), (34, 537700), (38, 481100), (40, 457045), (50, 365636), (68, 268850), (76, 240550), (85, 215080), (95, 192440), (100, 182818), (136, 134425), (152, 120275), (170, 107540), (190, 96220), (200, 91409), (283, 64600), (323, 56600), (340, 53770), (380, 48110), (425, 43016), (475, 38488), (566, 32300), (646, 28300), (680, 26885), (760, 24055), (850, 21508), (950, 19244), (1132, 16150), (1292, 14150), (1415, 12920), (1615, 11320), (1700, 10754), (1900, 9622), (2264, 8075), (2584, 7075), (2830, 6460), (3230, 5660), (3400, 5377), (3800, 4811)]