11780925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 21540288

約数和(自身を除く): 9759363

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 195, 215, 281, 325, 559, 645, 843, 975, 1075, 1405, 1677, 2795, 3225, 3653, 4215, 7025, 8385, 10959, 12083, 13975, 18265, 21075, 36249, 41925, 54795, 60415, 91325, 157079, 181245, 273975, 302075, 471237, 785395, 906225, 2356185, 3926975, 11780925]

約数ペア:

[(1, 11780925), (3, 3926975), (5, 2356185), (13, 906225), (15, 785395), (25, 471237), (39, 302075), (43, 273975), (65, 181245), (75, 157079), (129, 91325), (195, 60415), (215, 54795), (281, 41925), (325, 36249), (559, 21075), (645, 18265), (843, 13975), (975, 12083), (1075, 10959), (1405, 8385), (1677, 7025), (2795, 4215), (3225, 3653)]