21942500

素因数分解:

$2^2\times 5^4\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 60

約数和(自身を含む): 49071792

約数和(自身を除く): 27129292

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 125, 131, 134, 250, 262, 268, 335, 500, 524, 625, 655, 670, 1250, 1310, 1340, 1675, 2500, 2620, 3275, 3350, 6550, 6700, 8375, 8777, 13100, 16375, 16750, 17554, 32750, 33500, 35108, 41875, 43885, 65500, 81875, 83750, 87770, 163750, 167500, 175540, 219425, 327500, 438850, 877700, 1097125, 2194250, 4388500, 5485625, 10971250, 21942500]

約数ペア:

[(1, 21942500), (2, 10971250), (4, 5485625), (5, 4388500), (10, 2194250), (20, 1097125), (25, 877700), (50, 438850), (67, 327500), (100, 219425), (125, 175540), (131, 167500), (134, 163750), (250, 87770), (262, 83750), (268, 81875), (335, 65500), (500, 43885), (524, 41875), (625, 35108), (655, 33500), (670, 32750), (1250, 17554), (1310, 16750), (1340, 16375), (1675, 13100), (2500, 8777), (2620, 8375), (3275, 6700), (3350, 6550)]