221469280

素因数分解:

$2^5\times 5^1\times {\mathrm{347}}^1\times {\mathrm{3989}}^1$

素因数の和:4351

約数の個数: 48

約数和(自身を含む): 524860560

約数和(自身を除く): 303391280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 347, 694, 1388, 1735, 2776, 3470, 3989, 5552, 6940, 7978, 11104, 13880, 15956, 19945, 27760, 31912, 39890, 55520, 63824, 79780, 127648, 159560, 319120, 638240, 1384183, 2768366, 5536732, 6920915, 11073464, 13841830, 22146928, 27683660, 44293856, 55367320, 110734640, 221469280]

約数ペア:

[(1, 221469280), (2, 110734640), (4, 55367320), (5, 44293856), (8, 27683660), (10, 22146928), (16, 13841830), (20, 11073464), (32, 6920915), (40, 5536732), (80, 2768366), (160, 1384183), (347, 638240), (694, 319120), (1388, 159560), (1735, 127648), (2776, 79780), (3470, 63824), (3989, 55520), (5552, 39890), (6940, 31912), (7978, 27760), (11104, 19945), (13880, 15956)]