20087480750

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:859

約数の個数: 128

約数和(自身を含む): 40507084800

約数和(自身を除く): 20419604050

約数列:

[1, 2, 5, 10, 25, 29, 31, 50, 58, 62, 125, 139, 145, 155, 250, 278, 290, 310, 643, 695, 725, 775, 899, 1286, 1390, 1450, 1550, 1798, 3215, 3475, 3625, 3875, 4031, 4309, 4495, 6430, 6950, 7250, 7750, 8062, 8618, 8990, 16075, 17375, 18647, 19933, 20155, 21545, 22475, 32150, 34750, 37294, 39866, 40310, 43090, 44950, 80375, 89377, 93235, 99665, 100775, 107725, 112375, 124961, 160750, 178754, 186470, 199330, 201550, 215450, 224750, 249922, 446885, 466175, 498325, 503875, 538625, 578057, 624805, 893770, 932350, 996650, 1007750, 1077250, 1156114, 1249610, 2234425, 2330875, 2491625, 2591933, 2770687, 2890285, 3124025, 4468850, 4661750, 4983250, 5183866, 5541374, 5780570, 6248050, 11172125, 12959665, 13853435, 14451425, 15620125, 22344250, 25919330, 27706870, 28902850, 31240250, 64798325, 69267175, 72257125, 80349923, 129596650, 138534350, 144514250, 160699846, 323991625, 346335875, 401749615, 647983250, 692671750, 803499230, 2008748075, 4017496150, 10043740375, 20087480750]

約数ペア:

[(1, 20087480750), (2, 10043740375), (5, 4017496150), (10, 2008748075), (25, 803499230), (29, 692671750), (31, 647983250), (50, 401749615), (58, 346335875), (62, 323991625), (125, 160699846), (139, 144514250), (145, 138534350), (155, 129596650), (250, 80349923), (278, 72257125), (290, 69267175), (310, 64798325), (643, 31240250), (695, 28902850), (725, 27706870), (775, 25919330), (899, 22344250), (1286, 15620125), (1390, 14451425), (1450, 13853435), (1550, 12959665), (1798, 11172125), (3215, 6248050), (3475, 5780570), (3625, 5541374), (3875, 5183866), (4031, 4983250), (4309, 4661750), (4495, 4468850), (6430, 3124025), (6950, 2890285), (7250, 2770687), (7750, 2591933), (8062, 2491625), (8618, 2330875), (8990, 2234425), (16075, 1249610), (17375, 1156114), (18647, 1077250), (19933, 1007750), (20155, 996650), (21545, 932350), (22475, 893770), (32150, 624805), (34750, 578057), (37294, 538625), (39866, 503875), (40310, 498325), (43090, 466175), (44950, 446885), (80375, 249922), (89377, 224750), (93235, 215450), (99665, 201550), (100775, 199330), (107725, 186470), (112375, 178754), (124961, 160750)]