1288973875

素因数分解:

$5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:773

約数の個数: 64

約数和(自身を含む): 1928908800

約数和(自身を除く): 639934925

約数列:

[1, 5, 7, 25, 29, 35, 79, 125, 145, 175, 203, 395, 553, 643, 725, 875, 1015, 1975, 2291, 2765, 3215, 3625, 4501, 5075, 9875, 11455, 13825, 16037, 16075, 18647, 22505, 25375, 50797, 57275, 69125, 80185, 80375, 93235, 112525, 130529, 253985, 286375, 355579, 400925, 466175, 562625, 652645, 1269925, 1473113, 1777895, 2004625, 2330875, 3263225, 6349625, 7365565, 8889475, 10311791, 16316125, 36827825, 44447375, 51558955, 184139125, 257794775, 1288973875]

約数ペア:

[(1, 1288973875), (5, 257794775), (7, 184139125), (25, 51558955), (29, 44447375), (35, 36827825), (79, 16316125), (125, 10311791), (145, 8889475), (175, 7365565), (203, 6349625), (395, 3263225), (553, 2330875), (643, 2004625), (725, 1777895), (875, 1473113), (1015, 1269925), (1975, 652645), (2291, 562625), (2765, 466175), (3215, 400925), (3625, 355579), (4501, 286375), (5075, 253985), (9875, 130529), (11455, 112525), (13825, 93235), (16037, 80375), (16075, 80185), (18647, 69125), (22505, 57275), (25375, 50797)]