15967360

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 38892600

約数和(自身を除く): 22925240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 409, 488, 610, 640, 818, 976, 1220, 1636, 1952, 2045, 2440, 3272, 3904, 4090, 4880, 6544, 7808, 8180, 9760, 13088, 16360, 19520, 24949, 26176, 32720, 39040, 49898, 52352, 65440, 99796, 124745, 130880, 199592, 249490, 261760, 399184, 498980, 798368, 997960, 1596736, 1995920, 3193472, 3991840, 7983680, 15967360]

約数ペア:

[(1, 15967360), (2, 7983680), (4, 3991840), (5, 3193472), (8, 1995920), (10, 1596736), (16, 997960), (20, 798368), (32, 498980), (40, 399184), (61, 261760), (64, 249490), (80, 199592), (122, 130880), (128, 124745), (160, 99796), (244, 65440), (305, 52352), (320, 49898), (409, 39040), (488, 32720), (610, 26176), (640, 24949), (818, 19520), (976, 16360), (1220, 13088), (1636, 9760), (1952, 8180), (2045, 7808), (2440, 6544), (3272, 4880), (3904, 4090)]