78777320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115849}}^1$

素因数の和:115877

約数の個数: 32

約数和(自身を含む): 187677000

約数和(自身を除く): 108899680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115849, 231698, 463396, 579245, 926792, 1158490, 1969433, 2316980, 3938866, 4633960, 7877732, 9847165, 15755464, 19694330, 39388660, 78777320]

約数ペア:

[(1, 78777320), (2, 39388660), (4, 19694330), (5, 15755464), (8, 9847165), (10, 7877732), (17, 4633960), (20, 3938866), (34, 2316980), (40, 1969433), (68, 1158490), (85, 926792), (136, 579245), (170, 463396), (340, 231698), (680, 115849)]