656382220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:192

約数の個数: 144

約数和(自身を含む): 1597506624

約数和(自身を除く): 941124404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 37, 52, 62, 65, 71, 74, 124, 130, 142, 148, 155, 185, 260, 284, 310, 355, 370, 403, 481, 620, 710, 740, 806, 923, 961, 962, 1147, 1420, 1612, 1846, 1922, 1924, 2015, 2201, 2294, 2405, 2627, 3692, 3844, 4030, 4402, 4588, 4615, 4805, 4810, 5254, 5735, 8060, 8804, 9230, 9610, 9620, 10508, 11005, 11470, 12493, 13135, 14911, 18460, 19220, 22010, 22940, 24986, 26270, 28613, 29822, 34151, 35557, 44020, 49972, 52540, 57226, 59644, 62465, 68231, 68302, 71114, 74555, 81437, 114452, 124930, 136462, 136604, 142228, 143065, 149110, 162874, 170755, 177785, 249860, 272924, 286130, 298220, 325748, 341155, 341510, 355570, 407185, 462241, 572260, 682310, 683020, 711140, 814370, 887003, 924482, 1058681, 1364620, 1628740, 1774006, 1848964, 2117362, 2311205, 2524547, 3548012, 4234724, 4435015, 4622410, 5049094, 5293405, 8870030, 9244820, 10098188, 10586810, 12622735, 17740060, 21173620, 25245470, 32819111, 50490940, 65638222, 131276444, 164095555, 328191110, 656382220]

約数ペア:

[(1, 656382220), (2, 328191110), (4, 164095555), (5, 131276444), (10, 65638222), (13, 50490940), (20, 32819111), (26, 25245470), (31, 21173620), (37, 17740060), (52, 12622735), (62, 10586810), (65, 10098188), (71, 9244820), (74, 8870030), (124, 5293405), (130, 5049094), (142, 4622410), (148, 4435015), (155, 4234724), (185, 3548012), (260, 2524547), (284, 2311205), (310, 2117362), (355, 1848964), (370, 1774006), (403, 1628740), (481, 1364620), (620, 1058681), (710, 924482), (740, 887003), (806, 814370), (923, 711140), (961, 683020), (962, 682310), (1147, 572260), (1420, 462241), (1612, 407185), (1846, 355570), (1922, 341510), (1924, 341155), (2015, 325748), (2201, 298220), (2294, 286130), (2405, 272924), (2627, 249860), (3692, 177785), (3844, 170755), (4030, 162874), (4402, 149110), (4588, 143065), (4615, 142228), (4805, 136604), (4810, 136462), (5254, 124930), (5735, 114452), (8060, 81437), (8804, 74555), (9230, 71114), (9610, 68302), (9620, 68231), (10508, 62465), (11005, 59644), (11470, 57226), (12493, 52540), (13135, 49972), (14911, 44020), (18460, 35557), (19220, 34151), (22010, 29822), (22940, 28613), (24986, 26270)]