164507920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{373}}^1$

素因数の和:572

約数の個数: 80

約数和(自身を含む): 396514800

約数和(自身を除く): 232006880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 149, 185, 296, 298, 370, 373, 592, 596, 740, 745, 746, 1192, 1480, 1490, 1492, 1865, 2384, 2960, 2980, 2984, 3730, 5513, 5960, 5968, 7460, 11026, 11920, 13801, 14920, 22052, 27565, 27602, 29840, 44104, 55130, 55204, 55577, 69005, 88208, 110260, 110408, 111154, 138010, 220520, 220816, 222308, 276020, 277885, 441040, 444616, 552040, 555770, 889232, 1104080, 1111540, 2056349, 2223080, 4112698, 4446160, 8225396, 10281745, 16450792, 20563490, 32901584, 41126980, 82253960, 164507920]

約数ペア:

[(1, 164507920), (2, 82253960), (4, 41126980), (5, 32901584), (8, 20563490), (10, 16450792), (16, 10281745), (20, 8225396), (37, 4446160), (40, 4112698), (74, 2223080), (80, 2056349), (148, 1111540), (149, 1104080), (185, 889232), (296, 555770), (298, 552040), (370, 444616), (373, 441040), (592, 277885), (596, 276020), (740, 222308), (745, 220816), (746, 220520), (1192, 138010), (1480, 111154), (1490, 110408), (1492, 110260), (1865, 88208), (2384, 69005), (2960, 55577), (2980, 55204), (2984, 55130), (3730, 44104), (5513, 29840), (5960, 27602), (5968, 27565), (7460, 22052), (11026, 14920), (11920, 13801)]