23125000

素因数分解:

$2^3\times 5^7\times {\mathrm{37}}^1$

素因数の和:78

約数の個数: 64

約数和(自身を含む): 55663920

約数和(自身を除く): 32538920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 125, 148, 185, 200, 250, 296, 370, 500, 625, 740, 925, 1000, 1250, 1480, 1850, 2500, 3125, 3700, 4625, 5000, 6250, 7400, 9250, 12500, 15625, 18500, 23125, 25000, 31250, 37000, 46250, 62500, 78125, 92500, 115625, 125000, 156250, 185000, 231250, 312500, 462500, 578125, 625000, 925000, 1156250, 2312500, 2890625, 4625000, 5781250, 11562500, 23125000]

約数ペア:

[(1, 23125000), (2, 11562500), (4, 5781250), (5, 4625000), (8, 2890625), (10, 2312500), (20, 1156250), (25, 925000), (37, 625000), (40, 578125), (50, 462500), (74, 312500), (100, 231250), (125, 185000), (148, 156250), (185, 125000), (200, 115625), (250, 92500), (296, 78125), (370, 62500), (500, 46250), (625, 37000), (740, 31250), (925, 25000), (1000, 23125), (1250, 18500), (1480, 15625), (1850, 12500), (2500, 9250), (3125, 7400), (3700, 6250), (4625, 5000)]