215040555

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26113}}^1$

素因数の和:26188

約数の個数: 32

約数和(自身を含む): 388576320

約数和(自身を除く): 173535765

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2745, 8235, 26113, 78339, 130565, 235017, 391695, 705051, 1175085, 1592893, 3525255, 4778679, 7964465, 14336037, 23893395, 43008111, 71680185, 215040555]

約数ペア:

[(1, 215040555), (3, 71680185), (5, 43008111), (9, 23893395), (15, 14336037), (27, 7964465), (45, 4778679), (61, 3525255), (135, 1592893), (183, 1175085), (305, 705051), (549, 391695), (915, 235017), (1647, 130565), (2745, 78339), (8235, 26113)]