28690280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{24733}}^1$

素因数の和:24773

約数の個数: 32

約数和(自身を含む): 66781800

約数和(自身を除く): 38091520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 24733, 49466, 98932, 123665, 197864, 247330, 494660, 717257, 989320, 1434514, 2869028, 3586285, 5738056, 7172570, 14345140, 28690280]

約数ペア:

[(1, 28690280), (2, 14345140), (4, 7172570), (5, 5738056), (8, 3586285), (10, 2869028), (20, 1434514), (29, 989320), (40, 717257), (58, 494660), (116, 247330), (145, 197864), (232, 123665), (290, 98932), (580, 49466), (1160, 24733)]