87201640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{641}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 208008000

約数和(自身を除く): 120806360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 179, 190, 358, 380, 641, 716, 760, 895, 1282, 1432, 1790, 2564, 3205, 3401, 3580, 5128, 6410, 6802, 7160, 12179, 12820, 13604, 17005, 24358, 25640, 27208, 34010, 48716, 60895, 68020, 97432, 114739, 121790, 136040, 229478, 243580, 458956, 487160, 573695, 917912, 1147390, 2180041, 2294780, 4360082, 4589560, 8720164, 10900205, 17440328, 21800410, 43600820, 87201640]

約数ペア:

[(1, 87201640), (2, 43600820), (4, 21800410), (5, 17440328), (8, 10900205), (10, 8720164), (19, 4589560), (20, 4360082), (38, 2294780), (40, 2180041), (76, 1147390), (95, 917912), (152, 573695), (179, 487160), (190, 458956), (358, 243580), (380, 229478), (641, 136040), (716, 121790), (760, 114739), (895, 97432), (1282, 68020), (1432, 60895), (1790, 48716), (2564, 34010), (3205, 27208), (3401, 25640), (3580, 24358), (5128, 17005), (6410, 13604), (6802, 12820), (7160, 12179)]