12781790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 29113344

約数和(自身を除く): 16331554

約数列:

[1, 2, 5, 7, 10, 14, 17, 23, 34, 35, 46, 70, 85, 115, 119, 161, 170, 230, 238, 322, 391, 467, 595, 782, 805, 934, 1190, 1610, 1955, 2335, 2737, 3269, 3910, 4670, 5474, 6538, 7939, 10741, 13685, 15878, 16345, 21482, 27370, 32690, 39695, 53705, 55573, 75187, 79390, 107410, 111146, 150374, 182597, 277865, 365194, 375935, 555730, 751870, 912985, 1278179, 1825970, 2556358, 6390895, 12781790]

約数ペア:

[(1, 12781790), (2, 6390895), (5, 2556358), (7, 1825970), (10, 1278179), (14, 912985), (17, 751870), (23, 555730), (34, 375935), (35, 365194), (46, 277865), (70, 182597), (85, 150374), (115, 111146), (119, 107410), (161, 79390), (170, 75187), (230, 55573), (238, 53705), (322, 39695), (391, 32690), (467, 27370), (595, 21482), (782, 16345), (805, 15878), (934, 13685), (1190, 10741), (1610, 7939), (1955, 6538), (2335, 5474), (2737, 4670), (3269, 3910)]