127390640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{353}}^1$

素因数の和:726

約数の個数: 80

約数和(自身を含む): 320791968

約数和(自身を除く): 193401328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 347, 353, 520, 694, 706, 1040, 1388, 1412, 1735, 1765, 2776, 2824, 3470, 3530, 4511, 4589, 5552, 5648, 6940, 7060, 9022, 9178, 13880, 14120, 18044, 18356, 22555, 22945, 27760, 28240, 36088, 36712, 45110, 45890, 72176, 73424, 90220, 91780, 122491, 180440, 183560, 244982, 360880, 367120, 489964, 612455, 979928, 1224910, 1592383, 1959856, 2449820, 3184766, 4899640, 6369532, 7961915, 9799280, 12739064, 15923830, 25478128, 31847660, 63695320, 127390640]

約数ペア:

[(1, 127390640), (2, 63695320), (4, 31847660), (5, 25478128), (8, 15923830), (10, 12739064), (13, 9799280), (16, 7961915), (20, 6369532), (26, 4899640), (40, 3184766), (52, 2449820), (65, 1959856), (80, 1592383), (104, 1224910), (130, 979928), (208, 612455), (260, 489964), (347, 367120), (353, 360880), (520, 244982), (694, 183560), (706, 180440), (1040, 122491), (1388, 91780), (1412, 90220), (1735, 73424), (1765, 72176), (2776, 45890), (2824, 45110), (3470, 36712), (3530, 36088), (4511, 28240), (4589, 27760), (5552, 22945), (5648, 22555), (6940, 18356), (7060, 18044), (9022, 14120), (9178, 13880)]