82867280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16981}}^1$

素因数の和:17055

約数の個数: 40

約数和(自身を含む): 195836424

約数和(自身を除く): 112969144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 16981, 33962, 67924, 84905, 135848, 169810, 271696, 339620, 679240, 1035841, 1358480, 2071682, 4143364, 5179205, 8286728, 10358410, 16573456, 20716820, 41433640, 82867280]

約数ペア:

[(1, 82867280), (2, 41433640), (4, 20716820), (5, 16573456), (8, 10358410), (10, 8286728), (16, 5179205), (20, 4143364), (40, 2071682), (61, 1358480), (80, 1035841), (122, 679240), (244, 339620), (305, 271696), (488, 169810), (610, 135848), (976, 84905), (1220, 67924), (2440, 33962), (4880, 16981)]