81572090

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:614

約数の個数: 32

約数和(自身を含む): 149040000

約数和(自身を除く): 67467910

約数列:

[1, 2, 5, 10, 179, 199, 229, 358, 398, 458, 895, 995, 1145, 1790, 1990, 2290, 35621, 40991, 45571, 71242, 81982, 91142, 178105, 204955, 227855, 356210, 409910, 455710, 8157209, 16314418, 40786045, 81572090]

約数ペア:

[(1, 81572090), (2, 40786045), (5, 16314418), (10, 8157209), (179, 455710), (199, 409910), (229, 356210), (358, 227855), (398, 204955), (458, 178105), (895, 91142), (995, 81982), (1145, 71242), (1790, 45571), (1990, 40991), (2290, 35621)]