18882540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4561}}^1$

素因数の和:4599

約数の個数: 72

約数和(自身を含む): 59780448

約数和(自身を除く): 40897908

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, 4561, 9122, 13683, 18244, 22805, 27366, 41049, 45610, 54732, 68415, 82098, 91220, 104903, 136830, 164196, 205245, 209806, 273660, 314709, 410490, 419612, 524515, 629418, 820980, 944127, 1049030, 1258836, 1573545, 1888254, 2098060, 3147090, 3776508, 4720635, 6294180, 9441270, 18882540]

約数ペア:

[(1, 18882540), (2, 9441270), (3, 6294180), (4, 4720635), (5, 3776508), (6, 3147090), (9, 2098060), (10, 1888254), (12, 1573545), (15, 1258836), (18, 1049030), (20, 944127), (23, 820980), (30, 629418), (36, 524515), (45, 419612), (46, 410490), (60, 314709), (69, 273660), (90, 209806), (92, 205245), (115, 164196), (138, 136830), (180, 104903), (207, 91220), (230, 82098), (276, 68415), (345, 54732), (414, 45610), (460, 41049), (690, 27366), (828, 22805), (1035, 18244), (1380, 13683), (2070, 9122), (4140, 4561)]