28541240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7841}}^1$

素因数の和:7872

約数の個数: 64

約数和(自身を含む): 79047360

約数和(自身を除く): 50506120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7841, 15682, 31364, 39205, 54887, 62728, 78410, 101933, 109774, 156820, 203866, 219548, 274435, 313640, 407732, 439096, 509665, 548870, 713531, 815464, 1019330, 1097740, 1427062, 2038660, 2195480, 2854124, 3567655, 4077320, 5708248, 7135310, 14270620, 28541240]

約数ペア:

[(1, 28541240), (2, 14270620), (4, 7135310), (5, 5708248), (7, 4077320), (8, 3567655), (10, 2854124), (13, 2195480), (14, 2038660), (20, 1427062), (26, 1097740), (28, 1019330), (35, 815464), (40, 713531), (52, 548870), (56, 509665), (65, 439096), (70, 407732), (91, 313640), (104, 274435), (130, 219548), (140, 203866), (182, 156820), (260, 109774), (280, 101933), (364, 78410), (455, 62728), (520, 54887), (728, 39205), (910, 31364), (1820, 15682), (3640, 7841)]