127738880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:495

約数の個数: 88

約数和(自身を含む): 312208440

約数和(自身を除く): 184469560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 409, 488, 512, 610, 640, 818, 976, 1024, 1220, 1280, 1636, 1952, 2045, 2440, 2560, 3272, 3904, 4090, 4880, 5120, 6544, 7808, 8180, 9760, 13088, 15616, 16360, 19520, 24949, 26176, 31232, 32720, 39040, 49898, 52352, 62464, 65440, 78080, 99796, 104704, 124745, 130880, 156160, 199592, 209408, 249490, 261760, 312320, 399184, 418816, 498980, 523520, 798368, 997960, 1047040, 1596736, 1995920, 2094080, 3193472, 3991840, 6386944, 7983680, 12773888, 15967360, 25547776, 31934720, 63869440, 127738880]

約数ペア:

[(1, 127738880), (2, 63869440), (4, 31934720), (5, 25547776), (8, 15967360), (10, 12773888), (16, 7983680), (20, 6386944), (32, 3991840), (40, 3193472), (61, 2094080), (64, 1995920), (80, 1596736), (122, 1047040), (128, 997960), (160, 798368), (244, 523520), (256, 498980), (305, 418816), (320, 399184), (409, 312320), (488, 261760), (512, 249490), (610, 209408), (640, 199592), (818, 156160), (976, 130880), (1024, 124745), (1220, 104704), (1280, 99796), (1636, 78080), (1952, 65440), (2045, 62464), (2440, 52352), (2560, 49898), (3272, 39040), (3904, 32720), (4090, 31232), (4880, 26176), (5120, 24949), (6544, 19520), (7808, 16360), (8180, 15616), (9760, 13088)]