131091440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26863}}^1$

素因数の和:26937

約数の個数: 40

約数和(自身を含む): 309795648

約数和(自身を除く): 178704208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 26863, 53726, 107452, 134315, 214904, 268630, 429808, 537260, 1074520, 1638643, 2149040, 3277286, 6554572, 8193215, 13109144, 16386430, 26218288, 32772860, 65545720, 131091440]

約数ペア:

[(1, 131091440), (2, 65545720), (4, 32772860), (5, 26218288), (8, 16386430), (10, 13109144), (16, 8193215), (20, 6554572), (40, 3277286), (61, 2149040), (80, 1638643), (122, 1074520), (244, 537260), (305, 429808), (488, 268630), (610, 214904), (976, 134315), (1220, 107452), (2440, 53726), (4880, 26863)]