128948580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31147}}^1$

素因数の和:31185

約数の個数: 72

約数和(自身を含む): 408163392

約数和(自身を除く): 279214812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 31147, 62294, 93441, 124588, 155735, 186882, 280323, 311470, 373764, 467205, 560646, 622940, 716381, 934410, 1121292, 1401615, 1432762, 1868820, 2149143, 2803230, 2865524, 3581905, 4298286, 5606460, 6447429, 7163810, 8596572, 10745715, 12894858, 14327620, 21491430, 25789716, 32237145, 42982860, 64474290, 128948580]

約数ペア:

[(1, 128948580), (2, 64474290), (3, 42982860), (4, 32237145), (5, 25789716), (6, 21491430), (9, 14327620), (10, 12894858), (12, 10745715), (15, 8596572), (18, 7163810), (20, 6447429), (23, 5606460), (30, 4298286), (36, 3581905), (45, 2865524), (46, 2803230), (60, 2149143), (69, 1868820), (90, 1432762), (92, 1401615), (115, 1121292), (138, 934410), (180, 716381), (207, 622940), (230, 560646), (276, 467205), (345, 373764), (414, 311470), (460, 280323), (690, 186882), (828, 155735), (1035, 124588), (1380, 93441), (2070, 62294), (4140, 31147)]