20136250

素因数分解:

$2^1\times 5^4\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:292

約数の個数: 40

約数和(自身を含む): 38378340

約数和(自身を除く): 18242090

約数列:

[1, 2, 5, 10, 25, 50, 89, 125, 178, 181, 250, 362, 445, 625, 890, 905, 1250, 1810, 2225, 4450, 4525, 9050, 11125, 16109, 22250, 22625, 32218, 45250, 55625, 80545, 111250, 113125, 161090, 226250, 402725, 805450, 2013625, 4027250, 10068125, 20136250]

約数ペア:

[(1, 20136250), (2, 10068125), (5, 4027250), (10, 2013625), (25, 805450), (50, 402725), (89, 226250), (125, 161090), (178, 113125), (181, 111250), (250, 80545), (362, 55625), (445, 45250), (625, 32218), (890, 22625), (905, 22250), (1250, 16109), (1810, 11125), (2225, 9050), (4450, 4525)]