164632640

素因数分解:

$2^6\times 5^1\times {\mathrm{127}}^1\times {\mathrm{4051}}^1$

素因数の和:4195

約数の個数: 56

約数和(自身を含む): 395215872

約数和(自身を除く): 230583232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 160, 254, 320, 508, 635, 1016, 1270, 2032, 2540, 4051, 4064, 5080, 8102, 8128, 10160, 16204, 20255, 20320, 32408, 40510, 40640, 64816, 81020, 129632, 162040, 259264, 324080, 514477, 648160, 1028954, 1296320, 2057908, 2572385, 4115816, 5144770, 8231632, 10289540, 16463264, 20579080, 32926528, 41158160, 82316320, 164632640]

約数ペア:

[(1, 164632640), (2, 82316320), (4, 41158160), (5, 32926528), (8, 20579080), (10, 16463264), (16, 10289540), (20, 8231632), (32, 5144770), (40, 4115816), (64, 2572385), (80, 2057908), (127, 1296320), (160, 1028954), (254, 648160), (320, 514477), (508, 324080), (635, 259264), (1016, 162040), (1270, 129632), (2032, 81020), (2540, 64816), (4051, 40640), (4064, 40510), (5080, 32408), (8102, 20320), (8128, 20255), (10160, 16204)]