20171295800

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{643}}^1\times {\mathrm{1553}}^1$

素因数の和:2313

約数の個数: 96

約数和(自身を含む): 47466805680

約数和(自身を除く): 27295509880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 200, 202, 404, 505, 643, 808, 1010, 1286, 1553, 2020, 2525, 2572, 3106, 3215, 4040, 5050, 5144, 6212, 6430, 7765, 10100, 12424, 12860, 15530, 16075, 20200, 25720, 31060, 32150, 38825, 62120, 64300, 64943, 77650, 128600, 129886, 155300, 156853, 259772, 310600, 313706, 324715, 519544, 627412, 649430, 784265, 998579, 1254824, 1298860, 1568530, 1623575, 1997158, 2597720, 3137060, 3247150, 3921325, 3994316, 4992895, 6274120, 6494300, 7842650, 7988632, 9985790, 12988600, 15685300, 19971580, 24964475, 31370600, 39943160, 49928950, 99857900, 100856479, 199715800, 201712958, 403425916, 504282395, 806851832, 1008564790, 2017129580, 2521411975, 4034259160, 5042823950, 10085647900, 20171295800]

約数ペア:

[(1, 20171295800), (2, 10085647900), (4, 5042823950), (5, 4034259160), (8, 2521411975), (10, 2017129580), (20, 1008564790), (25, 806851832), (40, 504282395), (50, 403425916), (100, 201712958), (101, 199715800), (200, 100856479), (202, 99857900), (404, 49928950), (505, 39943160), (643, 31370600), (808, 24964475), (1010, 19971580), (1286, 15685300), (1553, 12988600), (2020, 9985790), (2525, 7988632), (2572, 7842650), (3106, 6494300), (3215, 6274120), (4040, 4992895), (5050, 3994316), (5144, 3921325), (6212, 3247150), (6430, 3137060), (7765, 2597720), (10100, 1997158), (12424, 1623575), (12860, 1568530), (15530, 1298860), (16075, 1254824), (20200, 998579), (25720, 784265), (31060, 649430), (32150, 627412), (38825, 519544), (62120, 324715), (64300, 313706), (64943, 310600), (77650, 259772), (128600, 156853), (129886, 155300)]