1816400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:276

約数の個数: 60

約数和(自身を含む): 4612800

約数和(自身を除く): 2796400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 239, 304, 380, 400, 475, 478, 760, 950, 956, 1195, 1520, 1900, 1912, 2390, 3800, 3824, 4541, 4780, 5975, 7600, 9082, 9560, 11950, 18164, 19120, 22705, 23900, 36328, 45410, 47800, 72656, 90820, 95600, 113525, 181640, 227050, 363280, 454100, 908200, 1816400]

約数ペア:

[(1, 1816400), (2, 908200), (4, 454100), (5, 363280), (8, 227050), (10, 181640), (16, 113525), (19, 95600), (20, 90820), (25, 72656), (38, 47800), (40, 45410), (50, 36328), (76, 23900), (80, 22705), (95, 19120), (100, 18164), (152, 11950), (190, 9560), (200, 9082), (239, 7600), (304, 5975), (380, 4780), (400, 4541), (475, 3824), (478, 3800), (760, 2390), (950, 1912), (956, 1900), (1195, 1520)]