28019440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4933}}^1$

素因数の和:5017

約数の個数: 40

約数和(自身を含む): 66076128

約数和(自身を除く): 38056688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 4933, 5680, 9866, 19732, 24665, 39464, 49330, 78928, 98660, 197320, 350243, 394640, 700486, 1400972, 1751215, 2801944, 3502430, 5603888, 7004860, 14009720, 28019440]

約数ペア:

[(1, 28019440), (2, 14009720), (4, 7004860), (5, 5603888), (8, 3502430), (10, 2801944), (16, 1751215), (20, 1400972), (40, 700486), (71, 394640), (80, 350243), (142, 197320), (284, 98660), (355, 78928), (568, 49330), (710, 39464), (1136, 24665), (1420, 19732), (2840, 9866), (4933, 5680)]