28144640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:287

約数の個数: 88

約数和(自身を含む): 70744320

約数和(自身を除く): 42599680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 239, 256, 320, 368, 460, 478, 512, 640, 736, 920, 956, 1024, 1195, 1280, 1472, 1840, 1912, 2390, 2560, 2944, 3680, 3824, 4780, 5120, 5497, 5888, 7360, 7648, 9560, 10994, 11776, 14720, 15296, 19120, 21988, 23552, 27485, 29440, 30592, 38240, 43976, 54970, 58880, 61184, 76480, 87952, 109940, 117760, 122368, 152960, 175904, 219880, 244736, 305920, 351808, 439760, 611840, 703616, 879520, 1223680, 1407232, 1759040, 2814464, 3518080, 5628928, 7036160, 14072320, 28144640]

約数ペア:

[(1, 28144640), (2, 14072320), (4, 7036160), (5, 5628928), (8, 3518080), (10, 2814464), (16, 1759040), (20, 1407232), (23, 1223680), (32, 879520), (40, 703616), (46, 611840), (64, 439760), (80, 351808), (92, 305920), (115, 244736), (128, 219880), (160, 175904), (184, 152960), (230, 122368), (239, 117760), (256, 109940), (320, 87952), (368, 76480), (460, 61184), (478, 58880), (512, 54970), (640, 43976), (736, 38240), (920, 30592), (956, 29440), (1024, 27485), (1195, 23552), (1280, 21988), (1472, 19120), (1840, 15296), (1912, 14720), (2390, 11776), (2560, 10994), (2944, 9560), (3680, 7648), (3824, 7360), (4780, 5888), (5120, 5497)]