13247512720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{410903}}^1$

素因数の和:410960

約数の個数: 80

約数和(自身を含む): 34239808512

約数和(自身を除く): 20992295792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 410903, 821806, 1643612, 2054515, 3287224, 4109030, 5341739, 6574448, 8218060, 10683478, 12737993, 16436120, 21366956, 25475986, 26708695, 32872240, 42733912, 50951972, 53417390, 63689965, 85467824, 101903944, 106834780, 127379930, 165593909, 203807888, 213669560, 254759860, 331187818, 427339120, 509519720, 662375636, 827969545, 1019039440, 1324751272, 1655939090, 2649502544, 3311878180, 6623756360, 13247512720]

約数ペア:

[(1, 13247512720), (2, 6623756360), (4, 3311878180), (5, 2649502544), (8, 1655939090), (10, 1324751272), (13, 1019039440), (16, 827969545), (20, 662375636), (26, 509519720), (31, 427339120), (40, 331187818), (52, 254759860), (62, 213669560), (65, 203807888), (80, 165593909), (104, 127379930), (124, 106834780), (130, 101903944), (155, 85467824), (208, 63689965), (248, 53417390), (260, 50951972), (310, 42733912), (403, 32872240), (496, 26708695), (520, 25475986), (620, 21366956), (806, 16436120), (1040, 12737993), (1240, 10683478), (1612, 8218060), (2015, 6574448), (2480, 5341739), (3224, 4109030), (4030, 3287224), (6448, 2054515), (8060, 1643612), (16120, 821806), (32240, 410903)]