50398840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 117936000

約数和(自身を除く): 67537160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 158, 164, 205, 316, 328, 389, 395, 410, 632, 778, 790, 820, 1556, 1580, 1640, 1945, 3112, 3160, 3239, 3890, 6478, 7780, 12956, 15560, 15949, 16195, 25912, 30731, 31898, 32390, 61462, 63796, 64780, 79745, 122924, 127592, 129560, 153655, 159490, 245848, 307310, 318980, 614620, 637960, 1229240, 1259971, 2519942, 5039884, 6299855, 10079768, 12599710, 25199420, 50398840]

約数ペア:

[(1, 50398840), (2, 25199420), (4, 12599710), (5, 10079768), (8, 6299855), (10, 5039884), (20, 2519942), (40, 1259971), (41, 1229240), (79, 637960), (82, 614620), (158, 318980), (164, 307310), (205, 245848), (316, 159490), (328, 153655), (389, 129560), (395, 127592), (410, 122924), (632, 79745), (778, 64780), (790, 63796), (820, 61462), (1556, 32390), (1580, 31898), (1640, 30731), (1945, 25912), (3112, 16195), (3160, 15949), (3239, 15560), (3890, 12956), (6478, 7780)]