18383880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{641}}^1$

素因数の和:894

約数の個数: 64

約数和(自身を含む): 55468800

約数和(自身を除く): 37084920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 641, 717, 956, 1195, 1282, 1434, 1912, 1923, 2390, 2564, 2868, 3205, 3585, 3846, 4780, 5128, 5736, 6410, 7170, 7692, 9560, 9615, 12820, 14340, 15384, 19230, 25640, 28680, 38460, 76920, 153199, 306398, 459597, 612796, 765995, 919194, 1225592, 1531990, 1838388, 2297985, 3063980, 3676776, 4595970, 6127960, 9191940, 18383880]

約数ペア:

[(1, 18383880), (2, 9191940), (3, 6127960), (4, 4595970), (5, 3676776), (6, 3063980), (8, 2297985), (10, 1838388), (12, 1531990), (15, 1225592), (20, 919194), (24, 765995), (30, 612796), (40, 459597), (60, 306398), (120, 153199), (239, 76920), (478, 38460), (641, 28680), (717, 25640), (956, 19230), (1195, 15384), (1282, 14340), (1434, 12820), (1912, 9615), (1923, 9560), (2390, 7692), (2564, 7170), (2868, 6410), (3205, 5736), (3585, 5128), (3846, 4780)]