78505775

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 100493568

約数和(自身を除く): 21987793

約数列:

[1, 5, 25, 41, 191, 205, 401, 955, 1025, 2005, 4775, 7831, 10025, 16441, 39155, 76591, 82205, 195775, 382955, 411025, 1914775, 3140231, 15701155, 78505775]

約数ペア:

[(1, 78505775), (5, 15701155), (25, 3140231), (41, 1914775), (191, 411025), (205, 382955), (401, 195775), (955, 82205), (1025, 76591), (2005, 39155), (4775, 16441), (7831, 10025)]