78869475

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{971}}^1$

素因数の和:1025

約数の個数: 54

約数和(自身を含む): 149243796

約数和(自身を除く): 70374321

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 361, 475, 855, 971, 1083, 1425, 1805, 2913, 3249, 4275, 4855, 5415, 8739, 9025, 14565, 16245, 18449, 24275, 27075, 43695, 55347, 72825, 81225, 92245, 166041, 218475, 276735, 350531, 461225, 830205, 1051593, 1383675, 1752655, 3154779, 4151025, 5257965, 8763275, 15773895, 26289825, 78869475]

約数ペア:

[(1, 78869475), (3, 26289825), (5, 15773895), (9, 8763275), (15, 5257965), (19, 4151025), (25, 3154779), (45, 1752655), (57, 1383675), (75, 1051593), (95, 830205), (171, 461225), (225, 350531), (285, 276735), (361, 218475), (475, 166041), (855, 92245), (971, 81225), (1083, 72825), (1425, 55347), (1805, 43695), (2913, 27075), (3249, 24275), (4275, 18449), (4855, 16245), (5415, 14565), (8739, 9025)]