18751250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{2143}}^1$

素因数の和:2172

約数の個数: 40

約数和(自身を含む): 40187136

約数和(自身を除く): 21435886

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 625, 875, 1250, 1750, 2143, 4286, 4375, 8750, 10715, 15001, 21430, 30002, 53575, 75005, 107150, 150010, 267875, 375025, 535750, 750050, 1339375, 1875125, 2678750, 3750250, 9375625, 18751250]

約数ペア:

[(1, 18751250), (2, 9375625), (5, 3750250), (7, 2678750), (10, 1875125), (14, 1339375), (25, 750050), (35, 535750), (50, 375025), (70, 267875), (125, 150010), (175, 107150), (250, 75005), (350, 53575), (625, 30002), (875, 21430), (1250, 15001), (1750, 10715), (2143, 8750), (4286, 4375)]