20192440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^2$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 48119400

約数和(自身を除く): 27926960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 163, 190, 326, 380, 652, 760, 815, 1304, 1630, 3097, 3260, 6194, 6520, 12388, 15485, 24776, 26569, 30970, 53138, 61940, 106276, 123880, 132845, 212552, 265690, 504811, 531380, 1009622, 1062760, 2019244, 2524055, 4038488, 5048110, 10096220, 20192440]

約数ペア:

[(1, 20192440), (2, 10096220), (4, 5048110), (5, 4038488), (8, 2524055), (10, 2019244), (19, 1062760), (20, 1009622), (38, 531380), (40, 504811), (76, 265690), (95, 212552), (152, 132845), (163, 123880), (190, 106276), (326, 61940), (380, 53138), (652, 30970), (760, 26569), (815, 24776), (1304, 15485), (1630, 12388), (3097, 6520), (3260, 6194)]