28304860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 62318592

約数和(自身を除く): 34013732

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 643, 710, 1286, 1420, 2201, 2572, 3215, 4402, 6430, 8804, 11005, 12860, 19933, 22010, 39866, 44020, 45653, 79732, 91306, 99665, 182612, 199330, 228265, 398660, 456530, 913060, 1415243, 2830486, 5660972, 7076215, 14152430, 28304860]

約数ペア:

[(1, 28304860), (2, 14152430), (4, 7076215), (5, 5660972), (10, 2830486), (20, 1415243), (31, 913060), (62, 456530), (71, 398660), (124, 228265), (142, 199330), (155, 182612), (284, 99665), (310, 91306), (355, 79732), (620, 45653), (643, 44020), (710, 39866), (1286, 22010), (1420, 19933), (2201, 12860), (2572, 11005), (3215, 8804), (4402, 6430)]