778909040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{106993}}^1$

素因数の和:107026

約数の個数: 80

約数和(自身を含む): 2228899008

約数和(自身を除く): 1449989968

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 106993, 213986, 427972, 534965, 748951, 855944, 1069930, 1390909, 1497902, 1711888, 2139860, 2781818, 2995804, 3744755, 4279720, 5563636, 5991608, 6954545, 7489510, 8559440, 9736363, 11127272, 11983216, 13909090, 14979020, 19472726, 22254544, 27818180, 29958040, 38945452, 48681815, 55636360, 59916080, 77890904, 97363630, 111272720, 155781808, 194727260, 389454520, 778909040]

約数ペア:

[(1, 778909040), (2, 389454520), (4, 194727260), (5, 155781808), (7, 111272720), (8, 97363630), (10, 77890904), (13, 59916080), (14, 55636360), (16, 48681815), (20, 38945452), (26, 29958040), (28, 27818180), (35, 22254544), (40, 19472726), (52, 14979020), (56, 13909090), (65, 11983216), (70, 11127272), (80, 9736363), (91, 8559440), (104, 7489510), (112, 6954545), (130, 5991608), (140, 5563636), (182, 4279720), (208, 3744755), (260, 2995804), (280, 2781818), (364, 2139860), (455, 1711888), (520, 1497902), (560, 1390909), (728, 1069930), (910, 855944), (1040, 748951), (1456, 534965), (1820, 427972), (3640, 213986), (7280, 106993)]