128660240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{55457}}^1$

素因数の和:55499

約数の個数: 40

約数和(自身を含む): 309455640

約数和(自身を除く): 180795400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 55457, 110914, 221828, 277285, 443656, 554570, 887312, 1109140, 1608253, 2218280, 3216506, 4436560, 6433012, 8041265, 12866024, 16082530, 25732048, 32165060, 64330120, 128660240]

約数ペア:

[(1, 128660240), (2, 64330120), (4, 32165060), (5, 25732048), (8, 16082530), (10, 12866024), (16, 8041265), (20, 6433012), (29, 4436560), (40, 3216506), (58, 2218280), (80, 1608253), (116, 1109140), (145, 887312), (232, 554570), (290, 443656), (464, 277285), (580, 221828), (1160, 110914), (2320, 55457)]