68917940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2041

約数の個数: 96

約数和(自身を含む): 187595520

約数和(自身を除く): 118677580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 182, 190, 247, 260, 266, 364, 380, 455, 494, 532, 665, 910, 988, 1235, 1330, 1729, 1820, 1993, 2470, 2660, 3458, 3986, 4940, 6916, 7972, 8645, 9965, 13951, 17290, 19930, 25909, 27902, 34580, 37867, 39860, 51818, 55804, 69755, 75734, 103636, 129545, 139510, 151468, 181363, 189335, 259090, 265069, 279020, 362726, 378670, 492271, 518180, 530138, 725452, 757340, 906815, 984542, 1060276, 1325345, 1813630, 1969084, 2461355, 2650690, 3445897, 3627260, 4922710, 5301380, 6891794, 9845420, 13783588, 17229485, 34458970, 68917940]

約数ペア:

[(1, 68917940), (2, 34458970), (4, 17229485), (5, 13783588), (7, 9845420), (10, 6891794), (13, 5301380), (14, 4922710), (19, 3627260), (20, 3445897), (26, 2650690), (28, 2461355), (35, 1969084), (38, 1813630), (52, 1325345), (65, 1060276), (70, 984542), (76, 906815), (91, 757340), (95, 725452), (130, 530138), (133, 518180), (140, 492271), (182, 378670), (190, 362726), (247, 279020), (260, 265069), (266, 259090), (364, 189335), (380, 181363), (455, 151468), (494, 139510), (532, 129545), (665, 103636), (910, 75734), (988, 69755), (1235, 55804), (1330, 51818), (1729, 39860), (1820, 37867), (1993, 34580), (2470, 27902), (2660, 25909), (3458, 19930), (3986, 17290), (4940, 13951), (6916, 9965), (7972, 8645)]