319570940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1279}}^1$

素因数の和:1363

約数の個数: 72

約数和(自身を含む): 747371520

約数和(自身を除く): 427800580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 961, 1279, 1612, 1922, 2015, 2558, 3844, 4030, 4805, 5116, 6395, 8060, 9610, 12493, 12790, 16627, 19220, 24986, 25580, 33254, 39649, 49972, 62465, 66508, 79298, 83135, 124930, 158596, 166270, 198245, 249860, 332540, 396490, 515437, 792980, 1030874, 1229119, 2061748, 2458238, 2577185, 4916476, 5154370, 6145595, 10308740, 12291190, 15978547, 24582380, 31957094, 63914188, 79892735, 159785470, 319570940]

約数ペア:

[(1, 319570940), (2, 159785470), (4, 79892735), (5, 63914188), (10, 31957094), (13, 24582380), (20, 15978547), (26, 12291190), (31, 10308740), (52, 6145595), (62, 5154370), (65, 4916476), (124, 2577185), (130, 2458238), (155, 2061748), (260, 1229119), (310, 1030874), (403, 792980), (620, 515437), (806, 396490), (961, 332540), (1279, 249860), (1612, 198245), (1922, 166270), (2015, 158596), (2558, 124930), (3844, 83135), (4030, 79298), (4805, 66508), (5116, 62465), (6395, 49972), (8060, 39649), (9610, 33254), (12493, 25580), (12790, 24986), (16627, 19220)]