80921020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{283}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 187007184

約数和(自身を除く): 106086164

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 283, 290, 340, 493, 566, 580, 841, 986, 1132, 1415, 1682, 1972, 2465, 2830, 3364, 4205, 4811, 4930, 5660, 8207, 8410, 9622, 9860, 14297, 16414, 16820, 19244, 24055, 28594, 32828, 41035, 48110, 57188, 71485, 82070, 96220, 139519, 142970, 164140, 238003, 279038, 285940, 476006, 558076, 697595, 952012, 1190015, 1395190, 2380030, 2790380, 4046051, 4760060, 8092102, 16184204, 20230255, 40460510, 80921020]

約数ペア:

[(1, 80921020), (2, 40460510), (4, 20230255), (5, 16184204), (10, 8092102), (17, 4760060), (20, 4046051), (29, 2790380), (34, 2380030), (58, 1395190), (68, 1190015), (85, 952012), (116, 697595), (145, 558076), (170, 476006), (283, 285940), (290, 279038), (340, 238003), (493, 164140), (566, 142970), (580, 139519), (841, 96220), (986, 82070), (1132, 71485), (1415, 57188), (1682, 48110), (1972, 41035), (2465, 32828), (2830, 28594), (3364, 24055), (4205, 19244), (4811, 16820), (4930, 16414), (5660, 14297), (8207, 9860), (8410, 9622)]