15940665

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 31610880

約数和(自身を除く): 15670215

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 45, 65, 93, 117, 135, 155, 195, 279, 293, 351, 403, 465, 585, 837, 879, 1209, 1395, 1465, 1755, 2015, 2637, 3627, 3809, 4185, 4395, 6045, 7911, 9083, 10881, 11427, 13185, 18135, 19045, 27249, 34281, 39555, 45415, 54405, 57135, 81747, 102843, 118079, 136245, 171405, 245241, 354237, 408735, 514215, 590395, 1062711, 1226205, 1771185, 3188133, 5313555, 15940665]

約数ペア:

[(1, 15940665), (3, 5313555), (5, 3188133), (9, 1771185), (13, 1226205), (15, 1062711), (27, 590395), (31, 514215), (39, 408735), (45, 354237), (65, 245241), (93, 171405), (117, 136245), (135, 118079), (155, 102843), (195, 81747), (279, 57135), (293, 54405), (351, 45415), (403, 39555), (465, 34281), (585, 27249), (837, 19045), (879, 18135), (1209, 13185), (1395, 11427), (1465, 10881), (1755, 9083), (2015, 7911), (2637, 6045), (3627, 4395), (3809, 4185)]