201989950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2389}}^1$

素因数の和:2509

約数の個数: 48

約数和(自身を含む): 400086000

約数和(自身を除く): 198096050

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 89, 95, 178, 190, 445, 475, 890, 950, 1691, 2225, 2389, 3382, 4450, 4778, 8455, 11945, 16910, 23890, 42275, 45391, 59725, 84550, 90782, 119450, 212621, 226955, 425242, 453910, 1063105, 1134775, 2126210, 2269550, 4039799, 5315525, 8079598, 10631050, 20198995, 40397990, 100994975, 201989950]

約数ペア:

[(1, 201989950), (2, 100994975), (5, 40397990), (10, 20198995), (19, 10631050), (25, 8079598), (38, 5315525), (50, 4039799), (89, 2269550), (95, 2126210), (178, 1134775), (190, 1063105), (445, 453910), (475, 425242), (890, 226955), (950, 212621), (1691, 119450), (2225, 90782), (2389, 84550), (3382, 59725), (4450, 45391), (4778, 42275), (8455, 23890), (11945, 16910)]