208719040

素因数分解:

$2^6\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1171}}^1$

素因数の和:1745

約数の個数: 56

約数和(自身を含む): 498329712

約数和(自身を除く): 289610672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 557, 1114, 1171, 2228, 2342, 2785, 4456, 4684, 5570, 5855, 8912, 9368, 11140, 11710, 17824, 18736, 22280, 23420, 35648, 37472, 44560, 46840, 74944, 89120, 93680, 178240, 187360, 374720, 652247, 1304494, 2608988, 3261235, 5217976, 6522470, 10435952, 13044940, 20871904, 26089880, 41743808, 52179760, 104359520, 208719040]

約数ペア:

[(1, 208719040), (2, 104359520), (4, 52179760), (5, 41743808), (8, 26089880), (10, 20871904), (16, 13044940), (20, 10435952), (32, 6522470), (40, 5217976), (64, 3261235), (80, 2608988), (160, 1304494), (320, 652247), (557, 374720), (1114, 187360), (1171, 178240), (2228, 93680), (2342, 89120), (2785, 74944), (4456, 46840), (4684, 44560), (5570, 37472), (5855, 35648), (8912, 23420), (9368, 22280), (11140, 18736), (11710, 17824)]