163215

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:61

約数の個数: 40

約数和(自身を含む): 325248

約数和(自身を除く): 162033

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 45, 65, 81, 93, 117, 135, 155, 195, 279, 351, 403, 405, 465, 585, 837, 1053, 1209, 1395, 1755, 2015, 2511, 3627, 4185, 5265, 6045, 10881, 12555, 18135, 32643, 54405, 163215]

約数ペア:

[(1, 163215), (3, 54405), (5, 32643), (9, 18135), (13, 12555), (15, 10881), (27, 6045), (31, 5265), (39, 4185), (45, 3627), (65, 2511), (81, 2015), (93, 1755), (117, 1395), (135, 1209), (155, 1053), (195, 837), (279, 585), (351, 465), (403, 405)]