20161709560

素因数分解:

$2^3\times 5^1\times {\mathrm{61717}}^1\times {\mathrm{8167}}^1$

素因数の和:69895

約数の個数: 32

約数和(自身を含む): 45370136160

約数和(自身を除く): 25208426600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 8167, 16334, 32668, 40835, 61717, 65336, 81670, 123434, 163340, 246868, 308585, 326680, 493736, 617170, 1234340, 2468680, 504042739, 1008085478, 2016170956, 2520213695, 4032341912, 5040427390, 10080854780, 20161709560]

約数ペア:

[(1, 20161709560), (2, 10080854780), (4, 5040427390), (5, 4032341912), (8, 2520213695), (10, 2016170956), (20, 1008085478), (40, 504042739), (8167, 2468680), (16334, 1234340), (32668, 617170), (40835, 493736), (61717, 326680), (65336, 308585), (81670, 246868), (123434, 163340)]