65510000

素因数分解:

$2^4\times 5^4\times {\mathrm{6551}}^1$

素因数の和:6579

約数の個数: 50

約数和(自身を含む): 158630472

約数和(自身を除く): 93120472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 6551, 10000, 13102, 26204, 32755, 52408, 65510, 104816, 131020, 163775, 262040, 327550, 524080, 655100, 818875, 1310200, 1637750, 2620400, 3275500, 4094375, 6551000, 8188750, 13102000, 16377500, 32755000, 65510000]

約数ペア:

[(1, 65510000), (2, 32755000), (4, 16377500), (5, 13102000), (8, 8188750), (10, 6551000), (16, 4094375), (20, 3275500), (25, 2620400), (40, 1637750), (50, 1310200), (80, 818875), (100, 655100), (125, 524080), (200, 327550), (250, 262040), (400, 163775), (500, 131020), (625, 104816), (1000, 65510), (1250, 52408), (2000, 32755), (2500, 26204), (5000, 13102), (6551, 10000)]