40520008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{991}}^1$

素因数の和:1285

約数の個数: 32

約数和(自身を含む): 80352000

約数和(自身を除く): 39831992

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 269, 538, 991, 1076, 1982, 2152, 3964, 5111, 7928, 10222, 18829, 20444, 37658, 40888, 75316, 150632, 266579, 533158, 1066316, 2132632, 5065001, 10130002, 20260004, 40520008]

約数ペア:

[(1, 40520008), (2, 20260004), (4, 10130002), (8, 5065001), (19, 2132632), (38, 1066316), (76, 533158), (152, 266579), (269, 150632), (538, 75316), (991, 40888), (1076, 37658), (1982, 20444), (2152, 18829), (3964, 10222), (5111, 7928)]