20806909448

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{65147}}^1$

素因数の和:65286

約数の個数: 64

約数和(自身を含む): 43670007360

約数和(自身を除く): 22863097912

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 83, 104, 148, 166, 296, 332, 481, 664, 962, 1079, 1924, 2158, 3071, 3848, 4316, 6142, 8632, 12284, 24568, 39923, 65147, 79846, 130294, 159692, 260588, 319384, 521176, 846911, 1693822, 2410439, 3387644, 4820878, 5407201, 6775288, 9641756, 10814402, 19283512, 21628804, 31335707, 43257608, 62671414, 70293613, 125342828, 140587226, 200066437, 250685656, 281174452, 400132874, 562348904, 800265748, 1600531496, 2600863681, 5201727362, 10403454724, 20806909448]

約数ペア:

[(1, 20806909448), (2, 10403454724), (4, 5201727362), (8, 2600863681), (13, 1600531496), (26, 800265748), (37, 562348904), (52, 400132874), (74, 281174452), (83, 250685656), (104, 200066437), (148, 140587226), (166, 125342828), (296, 70293613), (332, 62671414), (481, 43257608), (664, 31335707), (962, 21628804), (1079, 19283512), (1924, 10814402), (2158, 9641756), (3071, 6775288), (3848, 5407201), (4316, 4820878), (6142, 3387644), (8632, 2410439), (12284, 1693822), (24568, 846911), (39923, 521176), (65147, 319384), (79846, 260588), (130294, 159692)]