21160320

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 68739840

約数和(自身を除く): 47579520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 103, 107, 120, 128, 160, 192, 206, 214, 240, 309, 320, 321, 384, 412, 428, 480, 515, 535, 618, 640, 642, 824, 856, 960, 1030, 1070, 1236, 1284, 1545, 1605, 1648, 1712, 1920, 2060, 2140, 2472, 2568, 3090, 3210, 3296, 3424, 4120, 4280, 4944, 5136, 6180, 6420, 6592, 6848, 8240, 8560, 9888, 10272, 11021, 12360, 12840, 13184, 13696, 16480, 17120, 19776, 20544, 22042, 24720, 25680, 32960, 33063, 34240, 39552, 41088, 44084, 49440, 51360, 55105, 65920, 66126, 68480, 88168, 98880, 102720, 110210, 132252, 165315, 176336, 197760, 205440, 220420, 264504, 330630, 352672, 440840, 529008, 661260, 705344, 881680, 1058016, 1322520, 1410688, 1763360, 2116032, 2645040, 3526720, 4232064, 5290080, 7053440, 10580160, 21160320]

約数ペア:

[(1, 21160320), (2, 10580160), (3, 7053440), (4, 5290080), (5, 4232064), (6, 3526720), (8, 2645040), (10, 2116032), (12, 1763360), (15, 1410688), (16, 1322520), (20, 1058016), (24, 881680), (30, 705344), (32, 661260), (40, 529008), (48, 440840), (60, 352672), (64, 330630), (80, 264504), (96, 220420), (103, 205440), (107, 197760), (120, 176336), (128, 165315), (160, 132252), (192, 110210), (206, 102720), (214, 98880), (240, 88168), (309, 68480), (320, 66126), (321, 65920), (384, 55105), (412, 51360), (428, 49440), (480, 44084), (515, 41088), (535, 39552), (618, 34240), (640, 33063), (642, 32960), (824, 25680), (856, 24720), (960, 22042), (1030, 20544), (1070, 19776), (1236, 17120), (1284, 16480), (1545, 13696), (1605, 13184), (1648, 12840), (1712, 12360), (1920, 11021), (2060, 10272), (2140, 9888), (2472, 8560), (2568, 8240), (3090, 6848), (3210, 6592), (3296, 6420), (3424, 6180), (4120, 5136), (4280, 4944)]