15915500

素因数分解:

$2^2\times 5^3\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 35162400

約数和(自身を除く): 19246900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 139, 229, 250, 278, 458, 500, 556, 695, 916, 1145, 1390, 2290, 2780, 3475, 4580, 5725, 6950, 11450, 13900, 17375, 22900, 28625, 31831, 34750, 57250, 63662, 69500, 114500, 127324, 159155, 318310, 636620, 795775, 1591550, 3183100, 3978875, 7957750, 15915500]

約数ペア:

[(1, 15915500), (2, 7957750), (4, 3978875), (5, 3183100), (10, 1591550), (20, 795775), (25, 636620), (50, 318310), (100, 159155), (125, 127324), (139, 114500), (229, 69500), (250, 63662), (278, 57250), (458, 34750), (500, 31831), (556, 28625), (695, 22900), (916, 17375), (1145, 13900), (1390, 11450), (2290, 6950), (2780, 5725), (3475, 4580)]