18833200

素因数分解:

$2^4\times 5^2\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:454

約数の個数: 60

約数和(自身を含む): 45666720

約数和(自身を除く): 26833520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 197, 200, 239, 394, 400, 478, 788, 956, 985, 1195, 1576, 1912, 1970, 2390, 3152, 3824, 3940, 4780, 4925, 5975, 7880, 9560, 9850, 11950, 15760, 19120, 19700, 23900, 39400, 47083, 47800, 78800, 94166, 95600, 188332, 235415, 376664, 470830, 753328, 941660, 1177075, 1883320, 2354150, 3766640, 4708300, 9416600, 18833200]

約数ペア:

[(1, 18833200), (2, 9416600), (4, 4708300), (5, 3766640), (8, 2354150), (10, 1883320), (16, 1177075), (20, 941660), (25, 753328), (40, 470830), (50, 376664), (80, 235415), (100, 188332), (197, 95600), (200, 94166), (239, 78800), (394, 47800), (400, 47083), (478, 39400), (788, 23900), (956, 19700), (985, 19120), (1195, 15760), (1576, 11950), (1912, 9850), (1970, 9560), (2390, 7880), (3152, 5975), (3824, 4925), (3940, 4780)]