399989561090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7919}}^1\times {\mathrm{10163}}^1$

素因数の和:18167

約数の個数: 64

約数和(自身を含む): 834612387840

約数和(自身を除く): 434622826750

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4970, 7919, 10163, 15838, 20326, 39595, 50815, 55433, 71141, 79190, 101630, 110866, 142282, 277165, 355705, 554330, 562249, 711410, 721573, 1124498, 1443146, 2811245, 3607865, 3935743, 5051011, 5622490, 7215730, 7871486, 10102022, 19678715, 25255055, 39357430, 50510110, 80480797, 160961594, 402403985, 563365579, 804807970, 1126731158, 2816827895, 5633655790, 5714136587, 11428273174, 28570682935, 39998956109, 57141365870, 79997912218, 199994780545, 399989561090]

約数ペア:

[(1, 399989561090), (2, 199994780545), (5, 79997912218), (7, 57141365870), (10, 39998956109), (14, 28570682935), (35, 11428273174), (70, 5714136587), (71, 5633655790), (142, 2816827895), (355, 1126731158), (497, 804807970), (710, 563365579), (994, 402403985), (2485, 160961594), (4970, 80480797), (7919, 50510110), (10163, 39357430), (15838, 25255055), (20326, 19678715), (39595, 10102022), (50815, 7871486), (55433, 7215730), (71141, 5622490), (79190, 5051011), (101630, 3935743), (110866, 3607865), (142282, 2811245), (277165, 1443146), (355705, 1124498), (554330, 721573), (562249, 711410)]