664156540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{4969}}^1$

素因数の和:5182

約数の個数: 48

約数和(自身を含む): 1437801120

約数和(自身を除く): 773644580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 163, 164, 205, 326, 410, 652, 815, 820, 1630, 3260, 4969, 6683, 9938, 13366, 19876, 24845, 26732, 33415, 49690, 66830, 99380, 133660, 203729, 407458, 809947, 814916, 1018645, 1619894, 2037290, 3239788, 4049735, 4074580, 8099470, 16198940, 33207827, 66415654, 132831308, 166039135, 332078270, 664156540]

約数ペア:

[(1, 664156540), (2, 332078270), (4, 166039135), (5, 132831308), (10, 66415654), (20, 33207827), (41, 16198940), (82, 8099470), (163, 4074580), (164, 4049735), (205, 3239788), (326, 2037290), (410, 1619894), (652, 1018645), (815, 814916), (820, 809947), (1630, 407458), (3260, 203729), (4969, 133660), (6683, 99380), (9938, 66830), (13366, 49690), (19876, 33415), (24845, 26732)]