71806280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19727}}^1$

素因数の和:19758

約数の個数: 64

約数和(自身を含む): 198858240

約数和(自身を除く): 127051960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 19727, 39454, 78908, 98635, 138089, 157816, 197270, 256451, 276178, 394540, 512902, 552356, 690445, 789080, 1025804, 1104712, 1282255, 1380890, 1795157, 2051608, 2564510, 2761780, 3590314, 5129020, 5523560, 7180628, 8975785, 10258040, 14361256, 17951570, 35903140, 71806280]

約数ペア:

[(1, 71806280), (2, 35903140), (4, 17951570), (5, 14361256), (7, 10258040), (8, 8975785), (10, 7180628), (13, 5523560), (14, 5129020), (20, 3590314), (26, 2761780), (28, 2564510), (35, 2051608), (40, 1795157), (52, 1380890), (56, 1282255), (65, 1104712), (70, 1025804), (91, 789080), (104, 690445), (130, 552356), (140, 512902), (182, 394540), (260, 276178), (280, 256451), (364, 197270), (455, 157816), (520, 138089), (728, 98635), (910, 78908), (1820, 39454), (3640, 19727)]