3951671960

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{99689}}^1$

素因数の和:100691

約数の個数: 32

約数和(自身を含む): 8900323200

約数和(自身を除く): 4948651240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 3964, 4955, 7928, 9910, 19820, 39640, 99689, 199378, 398756, 498445, 797512, 996890, 1993780, 3987560, 98791799, 197583598, 395167196, 493958995, 790334392, 987917990, 1975835980, 3951671960]

約数ペア:

[(1, 3951671960), (2, 1975835980), (4, 987917990), (5, 790334392), (8, 493958995), (10, 395167196), (20, 197583598), (40, 98791799), (991, 3987560), (1982, 1993780), (3964, 996890), (4955, 797512), (7928, 498445), (9910, 398756), (19820, 199378), (39640, 99689)]