19873840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1543}}^1$

素因数の和:1586

約数の個数: 80

約数和(自身を含む): 55139328

約数和(自身を除く): 35265488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1543, 1610, 1840, 2576, 3086, 3220, 6172, 6440, 7715, 10801, 12344, 12880, 15430, 21602, 24688, 30860, 35489, 43204, 54005, 61720, 70978, 86408, 108010, 123440, 141956, 172816, 177445, 216020, 248423, 283912, 354890, 432040, 496846, 567824, 709780, 864080, 993692, 1242115, 1419560, 1987384, 2484230, 2839120, 3974768, 4968460, 9936920, 19873840]

約数ペア:

[(1, 19873840), (2, 9936920), (4, 4968460), (5, 3974768), (7, 2839120), (8, 2484230), (10, 1987384), (14, 1419560), (16, 1242115), (20, 993692), (23, 864080), (28, 709780), (35, 567824), (40, 496846), (46, 432040), (56, 354890), (70, 283912), (80, 248423), (92, 216020), (112, 177445), (115, 172816), (140, 141956), (161, 123440), (184, 108010), (230, 86408), (280, 70978), (322, 61720), (368, 54005), (460, 43204), (560, 35489), (644, 30860), (805, 24688), (920, 21602), (1288, 15430), (1543, 12880), (1610, 12344), (1840, 10801), (2576, 7715), (3086, 6440), (3220, 6172)]