21952120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 30302600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 107, 115, 184, 214, 223, 230, 428, 446, 460, 535, 856, 892, 920, 1070, 1115, 1784, 2140, 2230, 2461, 4280, 4460, 4922, 5129, 8920, 9844, 10258, 12305, 19688, 20516, 23861, 24610, 25645, 41032, 47722, 49220, 51290, 95444, 98440, 102580, 119305, 190888, 205160, 238610, 477220, 548803, 954440, 1097606, 2195212, 2744015, 4390424, 5488030, 10976060, 21952120]

約数ペア:

[(1, 21952120), (2, 10976060), (4, 5488030), (5, 4390424), (8, 2744015), (10, 2195212), (20, 1097606), (23, 954440), (40, 548803), (46, 477220), (92, 238610), (107, 205160), (115, 190888), (184, 119305), (214, 102580), (223, 98440), (230, 95444), (428, 51290), (446, 49220), (460, 47722), (535, 41032), (856, 25645), (892, 24610), (920, 23861), (1070, 20516), (1115, 19688), (1784, 12305), (2140, 10258), (2230, 9844), (2461, 8920), (4280, 5129), (4460, 4922)]