164565080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{971}}^1$

素因数の和:1224

約数の個数: 64

約数和(自身を含む): 391910400

約数和(自身を除く): 227345320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 223, 380, 446, 760, 892, 971, 1115, 1784, 1942, 2230, 3884, 4237, 4460, 4855, 7768, 8474, 8920, 9710, 16948, 18449, 19420, 21185, 33896, 36898, 38840, 42370, 73796, 84740, 92245, 147592, 169480, 184490, 216533, 368980, 433066, 737960, 866132, 1082665, 1732264, 2165330, 4114127, 4330660, 8228254, 8661320, 16456508, 20570635, 32913016, 41141270, 82282540, 164565080]

約数ペア:

[(1, 164565080), (2, 82282540), (4, 41141270), (5, 32913016), (8, 20570635), (10, 16456508), (19, 8661320), (20, 8228254), (38, 4330660), (40, 4114127), (76, 2165330), (95, 1732264), (152, 1082665), (190, 866132), (223, 737960), (380, 433066), (446, 368980), (760, 216533), (892, 184490), (971, 169480), (1115, 147592), (1784, 92245), (1942, 84740), (2230, 73796), (3884, 42370), (4237, 38840), (4460, 36898), (4855, 33896), (7768, 21185), (8474, 19420), (8920, 18449), (9710, 16948)]