51010000

素因数分解:

$2^4\times 5^4\times {\mathrm{5101}}^1$

素因数の和:5129

約数の個数: 50

約数和(自身を含む): 123524522

約数和(自身を除く): 72514522

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, 5101, 10000, 10202, 20404, 25505, 40808, 51010, 81616, 102020, 127525, 204040, 255050, 408080, 510100, 637625, 1020200, 1275250, 2040400, 2550500, 3188125, 5101000, 6376250, 10202000, 12752500, 25505000, 51010000]

約数ペア:

[(1, 51010000), (2, 25505000), (4, 12752500), (5, 10202000), (8, 6376250), (10, 5101000), (16, 3188125), (20, 2550500), (25, 2040400), (40, 1275250), (50, 1020200), (80, 637625), (100, 510100), (125, 408080), (200, 255050), (250, 204040), (400, 127525), (500, 102020), (625, 81616), (1000, 51010), (1250, 40808), (2000, 25505), (2500, 20404), (5000, 10202), (5101, 10000)]