19062500

素因数分解:

$2^2\times 5^7\times {\mathrm{61}}^1$

素因数の和:100

約数の個数: 48

約数和(自身を含む): 42382704

約数和(自身を除く): 23320204

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 125, 244, 250, 305, 500, 610, 625, 1220, 1250, 1525, 2500, 3050, 3125, 6100, 6250, 7625, 12500, 15250, 15625, 30500, 31250, 38125, 62500, 76250, 78125, 152500, 156250, 190625, 312500, 381250, 762500, 953125, 1906250, 3812500, 4765625, 9531250, 19062500]

約数ペア:

[(1, 19062500), (2, 9531250), (4, 4765625), (5, 3812500), (10, 1906250), (20, 953125), (25, 762500), (50, 381250), (61, 312500), (100, 190625), (122, 156250), (125, 152500), (244, 78125), (250, 76250), (305, 62500), (500, 38125), (610, 31250), (625, 30500), (1220, 15625), (1250, 15250), (1525, 12500), (2500, 7625), (3050, 6250), (3125, 6100)]