40383880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 94944960

約数和(自身を除く): 54561080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 443, 530, 860, 886, 1060, 1720, 1772, 2120, 2215, 2279, 3544, 4430, 4558, 8860, 9116, 11395, 17720, 18232, 19049, 22790, 23479, 38098, 45580, 46958, 76196, 91160, 93916, 95245, 117395, 152392, 187832, 190490, 234790, 380980, 469580, 761960, 939160, 1009597, 2019194, 4038388, 5047985, 8076776, 10095970, 20191940, 40383880]

約数ペア:

[(1, 40383880), (2, 20191940), (4, 10095970), (5, 8076776), (8, 5047985), (10, 4038388), (20, 2019194), (40, 1009597), (43, 939160), (53, 761960), (86, 469580), (106, 380980), (172, 234790), (212, 190490), (215, 187832), (265, 152392), (344, 117395), (424, 95245), (430, 93916), (443, 91160), (530, 76196), (860, 46958), (886, 45580), (1060, 38098), (1720, 23479), (1772, 22790), (2120, 19049), (2215, 18232), (2279, 17720), (3544, 11395), (4430, 9116), (4558, 8860)]