20376550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 40510800

約数和(自身を除く): 20134250

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 89, 95, 178, 190, 241, 445, 475, 482, 890, 950, 1205, 1691, 2225, 2410, 3382, 4450, 4579, 6025, 8455, 9158, 12050, 16910, 21449, 22895, 42275, 42898, 45790, 84550, 107245, 114475, 214490, 228950, 407531, 536225, 815062, 1072450, 2037655, 4075310, 10188275, 20376550]

約数ペア:

[(1, 20376550), (2, 10188275), (5, 4075310), (10, 2037655), (19, 1072450), (25, 815062), (38, 536225), (50, 407531), (89, 228950), (95, 214490), (178, 114475), (190, 107245), (241, 84550), (445, 45790), (475, 42898), (482, 42275), (890, 22895), (950, 21449), (1205, 16910), (1691, 12050), (2225, 9158), (2410, 8455), (3382, 6025), (4450, 4579)]