21110080

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1667

約数の個数: 56

約数和(自身を含む): 51526440

約数和(自身を除く): 30416360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1609, 1640, 2624, 3218, 3280, 6436, 6560, 8045, 12872, 13120, 16090, 25744, 32180, 51488, 64360, 65969, 102976, 128720, 131938, 257440, 263876, 329845, 514880, 527752, 659690, 1055504, 1319380, 2111008, 2638760, 4222016, 5277520, 10555040, 21110080]

約数ペア:

[(1, 21110080), (2, 10555040), (4, 5277520), (5, 4222016), (8, 2638760), (10, 2111008), (16, 1319380), (20, 1055504), (32, 659690), (40, 527752), (41, 514880), (64, 329845), (80, 263876), (82, 257440), (160, 131938), (164, 128720), (205, 102976), (320, 65969), (328, 64360), (410, 51488), (656, 32180), (820, 25744), (1312, 16090), (1609, 13120), (1640, 12872), (2624, 8045), (3218, 6560), (3280, 6436)]