78688580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1163}}^1$

素因数の和:1388

約数の個数: 48

約数和(自身を含む): 175996800

約数和(自身を除く): 97308220

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 796, 995, 1163, 1990, 2326, 3383, 3980, 4652, 5815, 6766, 11630, 13532, 16915, 19771, 23260, 33830, 39542, 67660, 79084, 98855, 197710, 231437, 395420, 462874, 925748, 1157185, 2314370, 3934429, 4628740, 7868858, 15737716, 19672145, 39344290, 78688580]

約数ペア:

[(1, 78688580), (2, 39344290), (4, 19672145), (5, 15737716), (10, 7868858), (17, 4628740), (20, 3934429), (34, 2314370), (68, 1157185), (85, 925748), (170, 462874), (199, 395420), (340, 231437), (398, 197710), (796, 98855), (995, 79084), (1163, 67660), (1990, 39542), (2326, 33830), (3383, 23260), (3980, 19771), (4652, 16915), (5815, 13532), (6766, 11630)]