71801620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{839}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 165110400

約数和(自身を除く): 93308780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 389, 778, 839, 1556, 1678, 1945, 3356, 3890, 4195, 4279, 7780, 8390, 8558, 9229, 16780, 17116, 18458, 21395, 36916, 42790, 46145, 85580, 92290, 184580, 326371, 652742, 1305484, 1631855, 3263710, 3590081, 6527420, 7180162, 14360324, 17950405, 35900810, 71801620]

約数ペア:

[(1, 71801620), (2, 35900810), (4, 17950405), (5, 14360324), (10, 7180162), (11, 6527420), (20, 3590081), (22, 3263710), (44, 1631855), (55, 1305484), (110, 652742), (220, 326371), (389, 184580), (778, 92290), (839, 85580), (1556, 46145), (1678, 42790), (1945, 36916), (3356, 21395), (3890, 18458), (4195, 17116), (4279, 16780), (7780, 9229), (8390, 8558)]