28639260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12239}}^1$

素因数の和:12267

約数の個数: 72

約数和(自身を含む): 93562560

約数和(自身を除く): 64923300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 12239, 24478, 36717, 48956, 61195, 73434, 110151, 122390, 146868, 159107, 183585, 220302, 244780, 318214, 367170, 440604, 477321, 550755, 636428, 734340, 795535, 954642, 1101510, 1431963, 1591070, 1909284, 2203020, 2386605, 2863926, 3182140, 4773210, 5727852, 7159815, 9546420, 14319630, 28639260]

約数ペア:

[(1, 28639260), (2, 14319630), (3, 9546420), (4, 7159815), (5, 5727852), (6, 4773210), (9, 3182140), (10, 2863926), (12, 2386605), (13, 2203020), (15, 1909284), (18, 1591070), (20, 1431963), (26, 1101510), (30, 954642), (36, 795535), (39, 734340), (45, 636428), (52, 550755), (60, 477321), (65, 440604), (78, 367170), (90, 318214), (117, 244780), (130, 220302), (156, 183585), (180, 159107), (195, 146868), (234, 122390), (260, 110151), (390, 73434), (468, 61195), (585, 48956), (780, 36717), (1170, 24478), (2340, 12239)]