127967120

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3989}}^1$

素因数の和:4403

約数の個数: 40

約数和(自身を含む): 298340280

約数和(自身を除く): 170373160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 1604, 2005, 3208, 3989, 4010, 6416, 7978, 8020, 15956, 16040, 19945, 31912, 32080, 39890, 63824, 79780, 159560, 319120, 1599589, 3199178, 6398356, 7997945, 12796712, 15995890, 25593424, 31991780, 63983560, 127967120]

約数ペア:

[(1, 127967120), (2, 63983560), (4, 31991780), (5, 25593424), (8, 15995890), (10, 12796712), (16, 7997945), (20, 6398356), (40, 3199178), (80, 1599589), (401, 319120), (802, 159560), (1604, 79780), (2005, 63824), (3208, 39890), (3989, 32080), (4010, 31912), (6416, 19945), (7978, 16040), (8020, 15956)]