724340920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{1009}}^1$

素因数の和:1288

約数の個数: 64

約数和(自身を含む): 1655834400

約数和(自身を除く): 931493480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 137, 262, 274, 524, 548, 655, 685, 1009, 1048, 1096, 1310, 1370, 2018, 2620, 2740, 4036, 5045, 5240, 5480, 8072, 10090, 17947, 20180, 35894, 40360, 71788, 89735, 132179, 138233, 143576, 179470, 264358, 276466, 358940, 528716, 552932, 660895, 691165, 717880, 1057432, 1105864, 1321790, 1382330, 2643580, 2764660, 5287160, 5529320, 18108523, 36217046, 72434092, 90542615, 144868184, 181085230, 362170460, 724340920]

約数ペア:

[(1, 724340920), (2, 362170460), (4, 181085230), (5, 144868184), (8, 90542615), (10, 72434092), (20, 36217046), (40, 18108523), (131, 5529320), (137, 5287160), (262, 2764660), (274, 2643580), (524, 1382330), (548, 1321790), (655, 1105864), (685, 1057432), (1009, 717880), (1048, 691165), (1096, 660895), (1310, 552932), (1370, 528716), (2018, 358940), (2620, 276466), (2740, 264358), (4036, 179470), (5045, 143576), (5240, 138233), (5480, 132179), (8072, 89735), (10090, 71788), (17947, 40360), (20180, 35894)]