126213760

素因数分解:

$2^7\times 5^1\times {\mathrm{199}}^1\times {\mathrm{991}}^1$

素因数の和:1209

約数の個数: 64

約数和(自身を含む): 303552000

約数和(自身を除く): 177338240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 320, 398, 640, 796, 991, 995, 1592, 1982, 1990, 3184, 3964, 3980, 4955, 6368, 7928, 7960, 9910, 12736, 15856, 15920, 19820, 25472, 31712, 31840, 39640, 63424, 63680, 79280, 126848, 127360, 158560, 197209, 317120, 394418, 634240, 788836, 986045, 1577672, 1972090, 3155344, 3944180, 6310688, 7888360, 12621376, 15776720, 25242752, 31553440, 63106880, 126213760]

約数ペア:

[(1, 126213760), (2, 63106880), (4, 31553440), (5, 25242752), (8, 15776720), (10, 12621376), (16, 7888360), (20, 6310688), (32, 3944180), (40, 3155344), (64, 1972090), (80, 1577672), (128, 986045), (160, 788836), (199, 634240), (320, 394418), (398, 317120), (640, 197209), (796, 158560), (991, 127360), (995, 126848), (1592, 79280), (1982, 63680), (1990, 63424), (3184, 39640), (3964, 31840), (3980, 31712), (4955, 25472), (6368, 19820), (7928, 15920), (7960, 15856), (9910, 12736)]