18707000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1439}}^1$

素因数の和:1473

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 28467400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1439, 1625, 2600, 2878, 3250, 5756, 6500, 7195, 11512, 13000, 14390, 18707, 28780, 35975, 37414, 57560, 71950, 74828, 93535, 143900, 149656, 179875, 187070, 287800, 359750, 374140, 467675, 719500, 748280, 935350, 1439000, 1870700, 2338375, 3741400, 4676750, 9353500, 18707000]

約数ペア:

[(1, 18707000), (2, 9353500), (4, 4676750), (5, 3741400), (8, 2338375), (10, 1870700), (13, 1439000), (20, 935350), (25, 748280), (26, 719500), (40, 467675), (50, 374140), (52, 359750), (65, 287800), (100, 187070), (104, 179875), (125, 149656), (130, 143900), (200, 93535), (250, 74828), (260, 71950), (325, 57560), (500, 37414), (520, 35975), (650, 28780), (1000, 18707), (1300, 14390), (1439, 13000), (1625, 11512), (2600, 7195), (2878, 6500), (3250, 5756)]