71864720

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:312

約数の個数: 80

約数和(自身を含む): 172488960

約数和(自身を除く): 100624240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 83, 137, 158, 166, 274, 316, 332, 395, 415, 548, 632, 664, 685, 790, 830, 1096, 1264, 1328, 1370, 1580, 1660, 2192, 2740, 3160, 3320, 5480, 6320, 6557, 6640, 10823, 10960, 11371, 13114, 21646, 22742, 26228, 32785, 43292, 45484, 52456, 54115, 56855, 65570, 86584, 90968, 104912, 108230, 113710, 131140, 173168, 181936, 216460, 227420, 262280, 432920, 454840, 524560, 865840, 898309, 909680, 1796618, 3593236, 4491545, 7186472, 8983090, 14372944, 17966180, 35932360, 71864720]

約数ペア:

[(1, 71864720), (2, 35932360), (4, 17966180), (5, 14372944), (8, 8983090), (10, 7186472), (16, 4491545), (20, 3593236), (40, 1796618), (79, 909680), (80, 898309), (83, 865840), (137, 524560), (158, 454840), (166, 432920), (274, 262280), (316, 227420), (332, 216460), (395, 181936), (415, 173168), (548, 131140), (632, 113710), (664, 108230), (685, 104912), (790, 90968), (830, 86584), (1096, 65570), (1264, 56855), (1328, 54115), (1370, 52456), (1580, 45484), (1660, 43292), (2192, 32785), (2740, 26228), (3160, 22742), (3320, 21646), (5480, 13114), (6320, 11371), (6557, 10960), (6640, 10823)]