391856475

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 702423792

約数和(自身を除く): 310567317

約数列:

[1, 3, 5, 15, 19, 25, 41, 57, 75, 95, 123, 205, 285, 353, 361, 475, 615, 779, 1025, 1059, 1083, 1425, 1765, 1805, 2337, 3075, 3895, 5295, 5415, 6707, 8825, 9025, 11685, 14473, 14801, 19475, 20121, 26475, 27075, 33535, 43419, 44403, 58425, 72365, 74005, 100605, 127433, 167675, 217095, 222015, 274987, 361825, 370025, 382299, 503025, 637165, 824961, 1085475, 1110075, 1374935, 1911495, 3185825, 4124805, 5224753, 6874675, 9557475, 15674259, 20624025, 26123765, 78371295, 130618825, 391856475]

約数ペア:

[(1, 391856475), (3, 130618825), (5, 78371295), (15, 26123765), (19, 20624025), (25, 15674259), (41, 9557475), (57, 6874675), (75, 5224753), (95, 4124805), (123, 3185825), (205, 1911495), (285, 1374935), (353, 1110075), (361, 1085475), (475, 824961), (615, 637165), (779, 503025), (1025, 382299), (1059, 370025), (1083, 361825), (1425, 274987), (1765, 222015), (1805, 217095), (2337, 167675), (3075, 127433), (3895, 100605), (5295, 74005), (5415, 72365), (6707, 58425), (8825, 44403), (9025, 43419), (11685, 33535), (14473, 27075), (14801, 26475), (19475, 20121)]