123113920

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20249}}^1$

素因数の和:20285

約数の個数: 56

約数和(自身を含む): 308610000

約数和(自身を除く): 185496080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 20249, 40498, 80996, 101245, 161992, 202490, 323984, 384731, 404980, 647968, 769462, 809960, 1295936, 1538924, 1619920, 1923655, 3077848, 3239840, 3847310, 6155696, 6479680, 7694620, 12311392, 15389240, 24622784, 30778480, 61556960, 123113920]

約数ペア:

[(1, 123113920), (2, 61556960), (4, 30778480), (5, 24622784), (8, 15389240), (10, 12311392), (16, 7694620), (19, 6479680), (20, 6155696), (32, 3847310), (38, 3239840), (40, 3077848), (64, 1923655), (76, 1619920), (80, 1538924), (95, 1295936), (152, 809960), (160, 769462), (190, 647968), (304, 404980), (320, 384731), (380, 323984), (608, 202490), (760, 161992), (1216, 101245), (1520, 80996), (3040, 40498), (6080, 20249)]