1406807920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{16001}}^1$

素因数の和:16178

約数の個数: 80

約数和(自身を含む): 3762134208

約数和(自身を除く): 2355326288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 785, 1099, 1256, 1570, 2198, 2512, 3140, 4396, 5495, 6280, 8792, 10990, 12560, 16001, 17584, 21980, 32002, 43960, 64004, 80005, 87920, 112007, 128008, 160010, 224014, 256016, 320020, 448028, 560035, 640040, 896056, 1120070, 1280080, 1792112, 2240140, 2512157, 4480280, 5024314, 8960560, 10048628, 12560785, 17585099, 20097256, 25121570, 35170198, 40194512, 50243140, 70340396, 87925495, 100486280, 140680792, 175850990, 200972560, 281361584, 351701980, 703403960, 1406807920]

約数ペア:

[(1, 1406807920), (2, 703403960), (4, 351701980), (5, 281361584), (7, 200972560), (8, 175850990), (10, 140680792), (14, 100486280), (16, 87925495), (20, 70340396), (28, 50243140), (35, 40194512), (40, 35170198), (56, 25121570), (70, 20097256), (80, 17585099), (112, 12560785), (140, 10048628), (157, 8960560), (280, 5024314), (314, 4480280), (560, 2512157), (628, 2240140), (785, 1792112), (1099, 1280080), (1256, 1120070), (1570, 896056), (2198, 640040), (2512, 560035), (3140, 448028), (4396, 320020), (5495, 256016), (6280, 224014), (8792, 160010), (10990, 128008), (12560, 112007), (16001, 87920), (17584, 80005), (21980, 64004), (32002, 43960)]