2019939850

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{4111}}^1$

素因数の和:4471

約数の個数: 48

約数和(自身を含む): 3891465216

約数和(自身を除く): 1871525366

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 317, 634, 775, 1550, 1585, 3170, 4111, 7925, 8222, 9827, 15850, 19654, 20555, 41110, 49135, 98270, 102775, 127441, 205550, 245675, 254882, 491350, 637205, 1274410, 1303187, 2606374, 3186025, 6372050, 6515935, 13031870, 32579675, 40398797, 65159350, 80797594, 201993985, 403987970, 1009969925, 2019939850]

約数ペア:

[(1, 2019939850), (2, 1009969925), (5, 403987970), (10, 201993985), (25, 80797594), (31, 65159350), (50, 40398797), (62, 32579675), (155, 13031870), (310, 6515935), (317, 6372050), (634, 3186025), (775, 2606374), (1550, 1303187), (1585, 1274410), (3170, 637205), (4111, 491350), (7925, 254882), (8222, 245675), (9827, 205550), (15850, 127441), (19654, 102775), (20555, 98270), (41110, 49135)]