78791860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1559}}^1$

素因数の和:1613

約数の個数: 72

約数和(自身を含む): 199704960

約数和(自身を除く): 120913100

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 532, 665, 722, 1330, 1444, 1559, 1805, 2527, 2660, 3118, 3610, 5054, 6236, 7220, 7795, 10108, 10913, 12635, 15590, 21826, 25270, 29621, 31180, 43652, 50540, 54565, 59242, 109130, 118484, 148105, 207347, 218260, 296210, 414694, 562799, 592420, 829388, 1036735, 1125598, 2073470, 2251196, 2813995, 3939593, 4146940, 5627990, 7879186, 11255980, 15758372, 19697965, 39395930, 78791860]

約数ペア:

[(1, 78791860), (2, 39395930), (4, 19697965), (5, 15758372), (7, 11255980), (10, 7879186), (14, 5627990), (19, 4146940), (20, 3939593), (28, 2813995), (35, 2251196), (38, 2073470), (70, 1125598), (76, 1036735), (95, 829388), (133, 592420), (140, 562799), (190, 414694), (266, 296210), (361, 218260), (380, 207347), (532, 148105), (665, 118484), (722, 109130), (1330, 59242), (1444, 54565), (1559, 50540), (1805, 43652), (2527, 31180), (2660, 29621), (3118, 25270), (3610, 21826), (5054, 15590), (6236, 12635), (7220, 10913), (7795, 10108)]