13639720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 32788800

約数和(自身を除く): 19149080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 131, 137, 152, 190, 262, 274, 380, 524, 548, 655, 685, 760, 1048, 1096, 1310, 1370, 2489, 2603, 2620, 2740, 4978, 5206, 5240, 5480, 9956, 10412, 12445, 13015, 17947, 19912, 20824, 24890, 26030, 35894, 49780, 52060, 71788, 89735, 99560, 104120, 143576, 179470, 340993, 358940, 681986, 717880, 1363972, 1704965, 2727944, 3409930, 6819860, 13639720]

約数ペア:

[(1, 13639720), (2, 6819860), (4, 3409930), (5, 2727944), (8, 1704965), (10, 1363972), (19, 717880), (20, 681986), (38, 358940), (40, 340993), (76, 179470), (95, 143576), (131, 104120), (137, 99560), (152, 89735), (190, 71788), (262, 52060), (274, 49780), (380, 35894), (524, 26030), (548, 24890), (655, 20824), (685, 19912), (760, 17947), (1048, 13015), (1096, 12445), (1310, 10412), (1370, 9956), (2489, 5480), (2603, 5240), (2620, 5206), (2740, 4978)]