138578128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:476

約数の個数: 80

約数和(自身を含む): 306230400

約数和(自身を除く): 167652272

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 83, 92, 104, 166, 184, 208, 299, 332, 349, 368, 598, 664, 698, 1079, 1196, 1328, 1396, 1909, 2158, 2392, 2792, 3818, 4316, 4537, 4784, 5584, 7636, 8027, 8632, 9074, 15272, 16054, 17264, 18148, 24817, 28967, 30544, 32108, 36296, 49634, 57934, 64216, 72592, 99268, 104351, 115868, 128432, 198536, 208702, 231736, 376571, 397072, 417404, 463472, 666241, 753142, 834808, 1332482, 1506284, 1669616, 2664964, 3012568, 5329928, 6025136, 8661133, 10659856, 17322266, 34644532, 69289064, 138578128]

約数ペア:

[(1, 138578128), (2, 69289064), (4, 34644532), (8, 17322266), (13, 10659856), (16, 8661133), (23, 6025136), (26, 5329928), (46, 3012568), (52, 2664964), (83, 1669616), (92, 1506284), (104, 1332482), (166, 834808), (184, 753142), (208, 666241), (299, 463472), (332, 417404), (349, 397072), (368, 376571), (598, 231736), (664, 208702), (698, 198536), (1079, 128432), (1196, 115868), (1328, 104351), (1396, 99268), (1909, 72592), (2158, 64216), (2392, 57934), (2792, 49634), (3818, 36296), (4316, 32108), (4537, 30544), (4784, 28967), (5584, 24817), (7636, 18148), (8027, 17264), (8632, 16054), (9074, 15272)]