20516200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5399}}^1$

素因数の和:5434

約数の個数: 48

約数和(自身を含む): 50220000

約数和(自身を除く): 29703800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5399, 10798, 21596, 26995, 43192, 53990, 102581, 107980, 134975, 205162, 215960, 269950, 410324, 512905, 539900, 820648, 1025810, 1079800, 2051620, 2564525, 4103240, 5129050, 10258100, 20516200]

約数ペア:

[(1, 20516200), (2, 10258100), (4, 5129050), (5, 4103240), (8, 2564525), (10, 2051620), (19, 1079800), (20, 1025810), (25, 820648), (38, 539900), (40, 512905), (50, 410324), (76, 269950), (95, 215960), (100, 205162), (152, 134975), (190, 107980), (200, 102581), (380, 53990), (475, 43192), (760, 26995), (950, 21596), (1900, 10798), (3800, 5399)]