128661005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1279}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 176947200

約数和(自身を除く): 48286195

約数列:

[1, 5, 11, 31, 55, 59, 155, 295, 341, 649, 1279, 1705, 1829, 3245, 6395, 9145, 14069, 20119, 39649, 70345, 75461, 100595, 198245, 377305, 436139, 830071, 2180695, 2339291, 4150355, 11696455, 25732201, 128661005]

約数ペア:

[(1, 128661005), (5, 25732201), (11, 11696455), (31, 4150355), (55, 2339291), (59, 2180695), (155, 830071), (295, 436139), (341, 377305), (649, 198245), (1279, 100595), (1705, 75461), (1829, 70345), (3245, 39649), (6395, 20119), (9145, 14069)]