31579030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{223}}^1$

素因数の和:278

約数の個数: 72

約数和(自身を含む): 70555968

約数和(自身を除く): 38976938

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 223, 238, 245, 289, 446, 490, 578, 595, 833, 1115, 1190, 1445, 1561, 1666, 2023, 2230, 2890, 3122, 3791, 4046, 4165, 7582, 7805, 8330, 10115, 10927, 14161, 15610, 18955, 20230, 21854, 26537, 28322, 37910, 53074, 54635, 64447, 70805, 109270, 128894, 132685, 141610, 185759, 265370, 322235, 371518, 451129, 644470, 902258, 928795, 1857590, 2255645, 3157903, 4511290, 6315806, 15789515, 31579030]

約数ペア:

[(1, 31579030), (2, 15789515), (5, 6315806), (7, 4511290), (10, 3157903), (14, 2255645), (17, 1857590), (34, 928795), (35, 902258), (49, 644470), (70, 451129), (85, 371518), (98, 322235), (119, 265370), (170, 185759), (223, 141610), (238, 132685), (245, 128894), (289, 109270), (446, 70805), (490, 64447), (578, 54635), (595, 53074), (833, 37910), (1115, 28322), (1190, 26537), (1445, 21854), (1561, 20230), (1666, 18955), (2023, 15610), (2230, 14161), (2890, 10927), (3122, 10115), (3791, 8330), (4046, 7805), (4165, 7582)]