72408460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 156854880

約数和(自身を除く): 84446420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 227, 389, 410, 454, 778, 820, 908, 1135, 1556, 1945, 2270, 3890, 4540, 7780, 9307, 15949, 18614, 31898, 37228, 46535, 63796, 79745, 88303, 93070, 159490, 176606, 186140, 318980, 353212, 441515, 883030, 1766060, 3620423, 7240846, 14481692, 18102115, 36204230, 72408460]

約数ペア:

[(1, 72408460), (2, 36204230), (4, 18102115), (5, 14481692), (10, 7240846), (20, 3620423), (41, 1766060), (82, 883030), (164, 441515), (205, 353212), (227, 318980), (389, 186140), (410, 176606), (454, 159490), (778, 93070), (820, 88303), (908, 79745), (1135, 63796), (1556, 46535), (1945, 37228), (2270, 31898), (3890, 18614), (4540, 15949), (7780, 9307)]