18990400

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:129

約数の個数: 168

約数和(自身を含む): 55558944

約数和(自身を除く): 36568544

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 32, 40, 44, 50, 52, 55, 64, 65, 80, 83, 88, 100, 104, 110, 130, 143, 160, 166, 176, 200, 208, 220, 260, 275, 286, 320, 325, 332, 352, 400, 415, 416, 440, 520, 550, 572, 650, 664, 704, 715, 800, 830, 832, 880, 913, 1040, 1079, 1100, 1144, 1300, 1328, 1430, 1600, 1660, 1760, 1826, 2075, 2080, 2158, 2200, 2288, 2600, 2656, 2860, 3320, 3520, 3575, 3652, 4150, 4160, 4316, 4400, 4565, 4576, 5200, 5312, 5395, 5720, 6640, 7150, 7304, 8300, 8632, 8800, 9130, 9152, 10400, 10790, 11440, 11869, 13280, 14300, 14608, 16600, 17264, 17600, 18260, 20800, 21580, 22825, 22880, 23738, 26560, 26975, 28600, 29216, 33200, 34528, 36520, 43160, 45650, 45760, 47476, 53950, 57200, 58432, 59345, 66400, 69056, 73040, 86320, 91300, 94952, 107900, 114400, 118690, 132800, 146080, 172640, 182600, 189904, 215800, 228800, 237380, 292160, 296725, 345280, 365200, 379808, 431600, 474760, 593450, 730400, 759616, 863200, 949520, 1186900, 1460800, 1726400, 1899040, 2373800, 3798080, 4747600, 9495200, 18990400]

約数ペア:

[(1, 18990400), (2, 9495200), (4, 4747600), (5, 3798080), (8, 2373800), (10, 1899040), (11, 1726400), (13, 1460800), (16, 1186900), (20, 949520), (22, 863200), (25, 759616), (26, 730400), (32, 593450), (40, 474760), (44, 431600), (50, 379808), (52, 365200), (55, 345280), (64, 296725), (65, 292160), (80, 237380), (83, 228800), (88, 215800), (100, 189904), (104, 182600), (110, 172640), (130, 146080), (143, 132800), (160, 118690), (166, 114400), (176, 107900), (200, 94952), (208, 91300), (220, 86320), (260, 73040), (275, 69056), (286, 66400), (320, 59345), (325, 58432), (332, 57200), (352, 53950), (400, 47476), (415, 45760), (416, 45650), (440, 43160), (520, 36520), (550, 34528), (572, 33200), (650, 29216), (664, 28600), (704, 26975), (715, 26560), (800, 23738), (830, 22880), (832, 22825), (880, 21580), (913, 20800), (1040, 18260), (1079, 17600), (1100, 17264), (1144, 16600), (1300, 14608), (1328, 14300), (1430, 13280), (1600, 11869), (1660, 11440), (1760, 10790), (1826, 10400), (2075, 9152), (2080, 9130), (2158, 8800), (2200, 8632), (2288, 8300), (2600, 7304), (2656, 7150), (2860, 6640), (3320, 5720), (3520, 5395), (3575, 5312), (3652, 5200), (4150, 4576), (4160, 4565), (4316, 4400)]