388256440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:797

約数の個数: 128

約数和(自身を含む): 1037836800

約数和(自身を除く): 649580360

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 103, 104, 110, 130, 143, 206, 220, 260, 286, 412, 440, 515, 520, 572, 659, 715, 824, 1030, 1133, 1144, 1318, 1339, 1430, 2060, 2266, 2636, 2678, 2860, 3295, 4120, 4532, 5272, 5356, 5665, 5720, 6590, 6695, 7249, 8567, 9064, 10712, 11330, 13180, 13390, 14498, 14729, 17134, 22660, 26360, 26780, 28996, 29458, 34268, 36245, 42835, 45320, 53560, 57992, 58916, 67877, 68536, 72490, 73645, 85670, 94237, 117832, 135754, 144980, 147290, 171340, 188474, 271508, 289960, 294580, 339385, 342680, 376948, 471185, 543016, 589160, 678770, 746647, 753896, 882401, 942370, 1357540, 1493294, 1764802, 1884740, 2715080, 2986588, 3529604, 3733235, 3769480, 4412005, 5973176, 7059208, 7466470, 8824010, 9706411, 14932940, 17648020, 19412822, 29865880, 35296040, 38825644, 48532055, 77651288, 97064110, 194128220, 388256440]

約数ペア:

[(1, 388256440), (2, 194128220), (4, 97064110), (5, 77651288), (8, 48532055), (10, 38825644), (11, 35296040), (13, 29865880), (20, 19412822), (22, 17648020), (26, 14932940), (40, 9706411), (44, 8824010), (52, 7466470), (55, 7059208), (65, 5973176), (88, 4412005), (103, 3769480), (104, 3733235), (110, 3529604), (130, 2986588), (143, 2715080), (206, 1884740), (220, 1764802), (260, 1493294), (286, 1357540), (412, 942370), (440, 882401), (515, 753896), (520, 746647), (572, 678770), (659, 589160), (715, 543016), (824, 471185), (1030, 376948), (1133, 342680), (1144, 339385), (1318, 294580), (1339, 289960), (1430, 271508), (2060, 188474), (2266, 171340), (2636, 147290), (2678, 144980), (2860, 135754), (3295, 117832), (4120, 94237), (4532, 85670), (5272, 73645), (5356, 72490), (5665, 68536), (5720, 67877), (6590, 58916), (6695, 57992), (7249, 53560), (8567, 45320), (9064, 42835), (10712, 36245), (11330, 34268), (13180, 29458), (13390, 28996), (14498, 26780), (14729, 26360), (17134, 22660)]