51270880

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2339}}^1$

素因数の和:2491

約数の個数: 48

約数和(自身を含む): 122063760

約数和(自身を除く): 70792880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 1096, 1370, 2192, 2339, 2740, 4384, 4678, 5480, 9356, 10960, 11695, 18712, 21920, 23390, 37424, 46780, 74848, 93560, 187120, 320443, 374240, 640886, 1281772, 1602215, 2563544, 3204430, 5127088, 6408860, 10254176, 12817720, 25635440, 51270880]

約数ペア:

[(1, 51270880), (2, 25635440), (4, 12817720), (5, 10254176), (8, 6408860), (10, 5127088), (16, 3204430), (20, 2563544), (32, 1602215), (40, 1281772), (80, 640886), (137, 374240), (160, 320443), (274, 187120), (548, 93560), (685, 74848), (1096, 46780), (1370, 37424), (2192, 23390), (2339, 21920), (2740, 18712), (4384, 11695), (4678, 10960), (5480, 9356)]