208889720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401711}}^1$

素因数の和:401735

約数の個数: 32

約数和(自身を含む): 506157120

約数和(自身を除く): 297267400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 401711, 803422, 1606844, 2008555, 3213688, 4017110, 5222243, 8034220, 10444486, 16068440, 20888972, 26111215, 41777944, 52222430, 104444860, 208889720]

約数ペア:

[(1, 208889720), (2, 104444860), (4, 52222430), (5, 41777944), (8, 26111215), (10, 20888972), (13, 16068440), (20, 10444486), (26, 8034220), (40, 5222243), (52, 4017110), (65, 3213688), (104, 2008555), (130, 1606844), (260, 803422), (520, 401711)]