2564016875

素因数分解:

$5^4\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2887}}^1$

素因数の和:2950

約数の個数: 60

約数和(自身を含む): 3856952880

約数和(自身を除く): 1292936005

約数列:

[1, 5, 7, 25, 29, 35, 49, 125, 145, 175, 203, 245, 625, 725, 875, 1015, 1225, 1421, 2887, 3625, 4375, 5075, 6125, 7105, 14435, 18125, 20209, 25375, 30625, 35525, 72175, 83723, 101045, 126875, 141463, 177625, 360875, 418615, 505225, 586061, 707315, 888125, 1804375, 2093075, 2526125, 2930305, 3536575, 4102427, 10465375, 12630625, 14651525, 17682875, 20512135, 52326875, 73257625, 88414375, 102560675, 366288125, 512803375, 2564016875]

約数ペア:

[(1, 2564016875), (5, 512803375), (7, 366288125), (25, 102560675), (29, 88414375), (35, 73257625), (49, 52326875), (125, 20512135), (145, 17682875), (175, 14651525), (203, 12630625), (245, 10465375), (625, 4102427), (725, 3536575), (875, 2930305), (1015, 2526125), (1225, 2093075), (1421, 1804375), (2887, 888125), (3625, 707315), (4375, 586061), (5075, 505225), (6125, 418615), (7105, 360875), (14435, 177625), (18125, 141463), (20209, 126875), (25375, 101045), (30625, 83723), (35525, 72175)]