168691840

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 426870000

約数和(自身を除く): 258178160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 61, 64, 80, 116, 122, 128, 145, 149, 160, 232, 244, 290, 298, 305, 320, 464, 488, 580, 596, 610, 640, 745, 928, 976, 1160, 1192, 1220, 1490, 1769, 1856, 1952, 2320, 2384, 2440, 2980, 3538, 3712, 3904, 4321, 4640, 4768, 4880, 5960, 7076, 7808, 8642, 8845, 9089, 9280, 9536, 9760, 11920, 14152, 17284, 17690, 18178, 18560, 19072, 19520, 21605, 23840, 28304, 34568, 35380, 36356, 39040, 43210, 45445, 47680, 56608, 69136, 70760, 72712, 86420, 90890, 95360, 113216, 138272, 141520, 145424, 172840, 181780, 226432, 263581, 276544, 283040, 290848, 345680, 363560, 527162, 553088, 566080, 581696, 691360, 727120, 1054324, 1132160, 1163392, 1317905, 1382720, 1454240, 2108648, 2635810, 2765440, 2908480, 4217296, 5271620, 5816960, 8434592, 10543240, 16869184, 21086480, 33738368, 42172960, 84345920, 168691840]

約数ペア:

[(1, 168691840), (2, 84345920), (4, 42172960), (5, 33738368), (8, 21086480), (10, 16869184), (16, 10543240), (20, 8434592), (29, 5816960), (32, 5271620), (40, 4217296), (58, 2908480), (61, 2765440), (64, 2635810), (80, 2108648), (116, 1454240), (122, 1382720), (128, 1317905), (145, 1163392), (149, 1132160), (160, 1054324), (232, 727120), (244, 691360), (290, 581696), (298, 566080), (305, 553088), (320, 527162), (464, 363560), (488, 345680), (580, 290848), (596, 283040), (610, 276544), (640, 263581), (745, 226432), (928, 181780), (976, 172840), (1160, 145424), (1192, 141520), (1220, 138272), (1490, 113216), (1769, 95360), (1856, 90890), (1952, 86420), (2320, 72712), (2384, 70760), (2440, 69136), (2980, 56608), (3538, 47680), (3712, 45445), (3904, 43210), (4321, 39040), (4640, 36356), (4768, 35380), (4880, 34568), (5960, 28304), (7076, 23840), (7808, 21605), (8642, 19520), (8845, 19072), (9089, 18560), (9280, 18178), (9536, 17690), (9760, 17284), (11920, 14152)]