2163975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 4059264

約数和(自身を除く): 1895289

約数列:

[1, 3, 5, 11, 15, 25, 33, 43, 55, 61, 75, 129, 165, 183, 215, 275, 305, 473, 645, 671, 825, 915, 1075, 1419, 1525, 2013, 2365, 2623, 3225, 3355, 4575, 7095, 7869, 10065, 11825, 13115, 16775, 28853, 35475, 39345, 50325, 65575, 86559, 144265, 196725, 432795, 721325, 2163975]

約数ペア:

[(1, 2163975), (3, 721325), (5, 432795), (11, 196725), (15, 144265), (25, 86559), (33, 65575), (43, 50325), (55, 39345), (61, 35475), (75, 28853), (129, 16775), (165, 13115), (183, 11825), (215, 10065), (275, 7869), (305, 7095), (473, 4575), (645, 3355), (671, 3225), (825, 2623), (915, 2365), (1075, 2013), (1419, 1525)]