215395895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4243}}^1$

素因数の和:4343

約数の個数: 32

約数和(自身を含む): 308012544

約数和(自身を除く): 92616649

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 715, 781, 923, 3905, 4243, 4615, 10153, 21215, 46673, 50765, 55159, 233365, 275795, 301253, 606749, 1506265, 3033745, 3313783, 3916289, 16568915, 19581445, 43079179, 215395895]

約数ペア:

[(1, 215395895), (5, 43079179), (11, 19581445), (13, 16568915), (55, 3916289), (65, 3313783), (71, 3033745), (143, 1506265), (355, 606749), (715, 301253), (781, 275795), (923, 233365), (3905, 55159), (4243, 50765), (4615, 46673), (10153, 21215)]