20126093750

素因数分解:

$2^1\times 5^7\times 7^1\times {\mathrm{18401}}^1$

素因数の和:18445

約数の個数: 64

約数和(自身を含む): 43129577088

約数和(自身を除く): 23003483338

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 625, 875, 1250, 1750, 3125, 4375, 6250, 8750, 15625, 18401, 21875, 31250, 36802, 43750, 78125, 92005, 109375, 128807, 156250, 184010, 218750, 257614, 460025, 546875, 644035, 920050, 1093750, 1288070, 2300125, 3220175, 4600250, 6440350, 11500625, 16100875, 23001250, 32201750, 57503125, 80504375, 115006250, 161008750, 287515625, 402521875, 575031250, 805043750, 1437578125, 2012609375, 2875156250, 4025218750, 10063046875, 20126093750]

約数ペア:

[(1, 20126093750), (2, 10063046875), (5, 4025218750), (7, 2875156250), (10, 2012609375), (14, 1437578125), (25, 805043750), (35, 575031250), (50, 402521875), (70, 287515625), (125, 161008750), (175, 115006250), (250, 80504375), (350, 57503125), (625, 32201750), (875, 23001250), (1250, 16100875), (1750, 11500625), (3125, 6440350), (4375, 4600250), (6250, 3220175), (8750, 2300125), (15625, 1288070), (18401, 1093750), (21875, 920050), (31250, 644035), (36802, 546875), (43750, 460025), (78125, 257614), (92005, 218750), (109375, 184010), (128807, 156250)]