68442680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{401}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 164112480

約数和(自身を除く): 95669800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 251, 340, 401, 502, 680, 802, 1004, 1255, 1604, 2005, 2008, 2510, 3208, 4010, 4267, 5020, 6817, 8020, 8534, 10040, 13634, 16040, 17068, 21335, 27268, 34085, 34136, 42670, 54536, 68170, 85340, 100651, 136340, 170680, 201302, 272680, 402604, 503255, 805208, 1006510, 1711067, 2013020, 3422134, 4026040, 6844268, 8555335, 13688536, 17110670, 34221340, 68442680]

約数ペア:

[(1, 68442680), (2, 34221340), (4, 17110670), (5, 13688536), (8, 8555335), (10, 6844268), (17, 4026040), (20, 3422134), (34, 2013020), (40, 1711067), (68, 1006510), (85, 805208), (136, 503255), (170, 402604), (251, 272680), (340, 201302), (401, 170680), (502, 136340), (680, 100651), (802, 85340), (1004, 68170), (1255, 54536), (1604, 42670), (2005, 34136), (2008, 34085), (2510, 27268), (3208, 21335), (4010, 17068), (4267, 16040), (5020, 13634), (6817, 10040), (8020, 8534)]