21784640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3583}}^1$

素因数の和:3619

約数の個数: 56

約数和(自身を含む): 54620160

約数和(自身を除く): 32835520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3583, 6080, 7166, 14332, 17915, 28664, 35830, 57328, 68077, 71660, 114656, 136154, 143320, 229312, 272308, 286640, 340385, 544616, 573280, 680770, 1089232, 1146560, 1361540, 2178464, 2723080, 4356928, 5446160, 10892320, 21784640]

約数ペア:

[(1, 21784640), (2, 10892320), (4, 5446160), (5, 4356928), (8, 2723080), (10, 2178464), (16, 1361540), (19, 1146560), (20, 1089232), (32, 680770), (38, 573280), (40, 544616), (64, 340385), (76, 286640), (80, 272308), (95, 229312), (152, 143320), (160, 136154), (190, 114656), (304, 71660), (320, 68077), (380, 57328), (608, 35830), (760, 28664), (1216, 17915), (1520, 14332), (3040, 7166), (3583, 6080)]