261388380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{396043}}^1$

素因数の和:396066

約数の個数: 48

約数和(自身を含む): 798424704

約数和(自身を除く): 537036324

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 396043, 792086, 1188129, 1584172, 1980215, 2376258, 3960430, 4356473, 4752516, 5940645, 7920860, 8712946, 11881290, 13069419, 17425892, 21782365, 23762580, 26138838, 43564730, 52277676, 65347095, 87129460, 130694190, 261388380]

約数ペア:

[(1, 261388380), (2, 130694190), (3, 87129460), (4, 65347095), (5, 52277676), (6, 43564730), (10, 26138838), (11, 23762580), (12, 21782365), (15, 17425892), (20, 13069419), (22, 11881290), (30, 8712946), (33, 7920860), (44, 5940645), (55, 4752516), (60, 4356473), (66, 3960430), (110, 2376258), (132, 1980215), (165, 1584172), (220, 1188129), (330, 792086), (660, 396043)]