81863488

素因数分解:

$2^6\times 7^1\times {\mathrm{359}}^1\times {\mathrm{509}}^1$

素因数の和:887

約数の個数: 56

約数和(自身を含む): 186537600

約数和(自身を除く): 104674112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 359, 448, 509, 718, 1018, 1436, 2036, 2513, 2872, 3563, 4072, 5026, 5744, 7126, 8144, 10052, 11488, 14252, 16288, 20104, 22976, 28504, 32576, 40208, 57008, 80416, 114016, 160832, 182731, 228032, 365462, 730924, 1279117, 1461848, 2558234, 2923696, 5116468, 5847392, 10232936, 11694784, 20465872, 40931744, 81863488]

約数ペア:

[(1, 81863488), (2, 40931744), (4, 20465872), (7, 11694784), (8, 10232936), (14, 5847392), (16, 5116468), (28, 2923696), (32, 2558234), (56, 1461848), (64, 1279117), (112, 730924), (224, 365462), (359, 228032), (448, 182731), (509, 160832), (718, 114016), (1018, 80416), (1436, 57008), (2036, 40208), (2513, 32576), (2872, 28504), (3563, 22976), (4072, 20104), (5026, 16288), (5744, 14252), (7126, 11488), (8144, 10052)]