78376520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{367}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 186796800

約数和(自身を除く): 108420280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 281, 367, 380, 562, 734, 760, 1124, 1405, 1468, 1835, 2248, 2810, 2936, 3670, 5339, 5620, 6973, 7340, 10678, 11240, 13946, 14680, 21356, 26695, 27892, 34865, 42712, 53390, 55784, 69730, 103127, 106780, 139460, 206254, 213560, 278920, 412508, 515635, 825016, 1031270, 1959413, 2062540, 3918826, 4125080, 7837652, 9797065, 15675304, 19594130, 39188260, 78376520]

約数ペア:

[(1, 78376520), (2, 39188260), (4, 19594130), (5, 15675304), (8, 9797065), (10, 7837652), (19, 4125080), (20, 3918826), (38, 2062540), (40, 1959413), (76, 1031270), (95, 825016), (152, 515635), (190, 412508), (281, 278920), (367, 213560), (380, 206254), (562, 139460), (734, 106780), (760, 103127), (1124, 69730), (1405, 55784), (1468, 53390), (1835, 42712), (2248, 34865), (2810, 27892), (2936, 26695), (3670, 21356), (5339, 14680), (5620, 13946), (6973, 11240), (7340, 10678)]