639457320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{129971}}^1$

素因数の和:130026

約数の個数: 64

約数和(自身を含む): 1965176640

約数和(自身を除く): 1325719320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4920, 129971, 259942, 389913, 519884, 649855, 779826, 1039768, 1299710, 1559652, 1949565, 2599420, 3119304, 3899130, 5198840, 5328811, 7798260, 10657622, 15596520, 15986433, 21315244, 26644055, 31972866, 42630488, 53288110, 63945732, 79932165, 106576220, 127891464, 159864330, 213152440, 319728660, 639457320]

約数ペア:

[(1, 639457320), (2, 319728660), (3, 213152440), (4, 159864330), (5, 127891464), (6, 106576220), (8, 79932165), (10, 63945732), (12, 53288110), (15, 42630488), (20, 31972866), (24, 26644055), (30, 21315244), (40, 15986433), (41, 15596520), (60, 10657622), (82, 7798260), (120, 5328811), (123, 5198840), (164, 3899130), (205, 3119304), (246, 2599420), (328, 1949565), (410, 1559652), (492, 1299710), (615, 1039768), (820, 779826), (984, 649855), (1230, 519884), (1640, 389913), (2460, 259942), (4920, 129971)]