85943380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{643}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 186306624

約数和(自身を除く): 100363244

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 163, 164, 205, 326, 410, 643, 652, 815, 820, 1286, 1630, 2572, 3215, 3260, 6430, 6683, 12860, 13366, 26363, 26732, 33415, 52726, 66830, 104809, 105452, 131815, 133660, 209618, 263630, 419236, 524045, 527260, 1048090, 2096180, 4297169, 8594338, 17188676, 21485845, 42971690, 85943380]

約数ペア:

[(1, 85943380), (2, 42971690), (4, 21485845), (5, 17188676), (10, 8594338), (20, 4297169), (41, 2096180), (82, 1048090), (163, 527260), (164, 524045), (205, 419236), (326, 263630), (410, 209618), (643, 133660), (652, 131815), (815, 105452), (820, 104809), (1286, 66830), (1630, 52726), (2572, 33415), (3215, 26732), (3260, 26363), (6430, 13366), (6683, 12860)]