618498020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1669}}^1\times {\mathrm{2647}}^1$

素因数の和:4332

約数の個数: 48

約数和(自身を含む): 1485845760

約数和(自身を除く): 867347740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1669, 2647, 3338, 5294, 6676, 8345, 10588, 11683, 13235, 16690, 18529, 23366, 26470, 33380, 37058, 46732, 52940, 58415, 74116, 92645, 116830, 185290, 233660, 370580, 4417843, 8835686, 17671372, 22089215, 30924901, 44178430, 61849802, 88356860, 123699604, 154624505, 309249010, 618498020]

約数ペア:

[(1, 618498020), (2, 309249010), (4, 154624505), (5, 123699604), (7, 88356860), (10, 61849802), (14, 44178430), (20, 30924901), (28, 22089215), (35, 17671372), (70, 8835686), (140, 4417843), (1669, 370580), (2647, 233660), (3338, 185290), (5294, 116830), (6676, 92645), (8345, 74116), (10588, 58415), (11683, 52940), (13235, 46732), (16690, 37058), (18529, 33380), (23366, 26470)]