81996330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{210247}}^1$

素因数の和:210270

約数の個数: 32

約数和(自身を含む): 211929984

約数和(自身を除く): 129933654

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 210247, 420494, 630741, 1051235, 1261482, 2102470, 2733211, 3153705, 5466422, 6307410, 8199633, 13666055, 16399266, 27332110, 40998165, 81996330]

約数ペア:

[(1, 81996330), (2, 40998165), (3, 27332110), (5, 16399266), (6, 13666055), (10, 8199633), (13, 6307410), (15, 5466422), (26, 3153705), (30, 2733211), (39, 2102470), (65, 1261482), (78, 1051235), (130, 630741), (195, 420494), (390, 210247)]