195778820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{967}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 421521408

約数和(自身を除く): 225742588

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 191, 212, 265, 382, 530, 764, 955, 967, 1060, 1910, 1934, 3820, 3868, 4835, 9670, 10123, 19340, 20246, 40492, 50615, 51251, 101230, 102502, 184697, 202460, 205004, 256255, 369394, 512510, 738788, 923485, 1025020, 1846970, 3693940, 9788941, 19577882, 39155764, 48944705, 97889410, 195778820]

約数ペア:

[(1, 195778820), (2, 97889410), (4, 48944705), (5, 39155764), (10, 19577882), (20, 9788941), (53, 3693940), (106, 1846970), (191, 1025020), (212, 923485), (265, 738788), (382, 512510), (530, 369394), (764, 256255), (955, 205004), (967, 202460), (1060, 184697), (1910, 102502), (1934, 101230), (3820, 51251), (3868, 50615), (4835, 40492), (9670, 20246), (10123, 19340)]