30312500

素因数分解:

$2^2\times 5^7\times {\mathrm{97}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 66992016

約数和(自身を除く): 36679516

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 194, 250, 388, 485, 500, 625, 970, 1250, 1940, 2425, 2500, 3125, 4850, 6250, 9700, 12125, 12500, 15625, 24250, 31250, 48500, 60625, 62500, 78125, 121250, 156250, 242500, 303125, 312500, 606250, 1212500, 1515625, 3031250, 6062500, 7578125, 15156250, 30312500]

約数ペア:

[(1, 30312500), (2, 15156250), (4, 7578125), (5, 6062500), (10, 3031250), (20, 1515625), (25, 1212500), (50, 606250), (97, 312500), (100, 303125), (125, 242500), (194, 156250), (250, 121250), (388, 78125), (485, 62500), (500, 60625), (625, 48500), (970, 31250), (1250, 24250), (1940, 15625), (2425, 12500), (2500, 12125), (3125, 9700), (4850, 6250)]