128561000

素因数分解:

$2^3\times 5^3\times {\mathrm{59}}^1\times {\mathrm{2179}}^1$

素因数の和:2259

約数の個数: 64

約数和(自身を含む): 306072000

約数和(自身を除く): 177511000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 59, 100, 118, 125, 200, 236, 250, 295, 472, 500, 590, 1000, 1180, 1475, 2179, 2360, 2950, 4358, 5900, 7375, 8716, 10895, 11800, 14750, 17432, 21790, 29500, 43580, 54475, 59000, 87160, 108950, 128561, 217900, 257122, 272375, 435800, 514244, 544750, 642805, 1028488, 1089500, 1285610, 2179000, 2571220, 3214025, 5142440, 6428050, 12856100, 16070125, 25712200, 32140250, 64280500, 128561000]

約数ペア:

[(1, 128561000), (2, 64280500), (4, 32140250), (5, 25712200), (8, 16070125), (10, 12856100), (20, 6428050), (25, 5142440), (40, 3214025), (50, 2571220), (59, 2179000), (100, 1285610), (118, 1089500), (125, 1028488), (200, 642805), (236, 544750), (250, 514244), (295, 435800), (472, 272375), (500, 257122), (590, 217900), (1000, 128561), (1180, 108950), (1475, 87160), (2179, 59000), (2360, 54475), (2950, 43580), (4358, 29500), (5900, 21790), (7375, 17432), (8716, 14750), (10895, 11800)]