721567404

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{383}}^1\times {\mathrm{887}}^1$

素因数の和:1339

約数の個数: 72

約数和(自身を含む): 1861816320

約数和(自身を除く): 1140248916

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 118, 177, 236, 354, 383, 531, 708, 766, 887, 1062, 1149, 1532, 1774, 2124, 2298, 2661, 3447, 3548, 4596, 5322, 6894, 7983, 10644, 13788, 15966, 22597, 31932, 45194, 52333, 67791, 90388, 104666, 135582, 156999, 203373, 209332, 271164, 313998, 339721, 406746, 470997, 627996, 679442, 813492, 941994, 1019163, 1358884, 1883988, 2038326, 3057489, 4076652, 6114978, 12229956, 20043539, 40087078, 60130617, 80174156, 120261234, 180391851, 240522468, 360783702, 721567404]

約数ペア:

[(1, 721567404), (2, 360783702), (3, 240522468), (4, 180391851), (6, 120261234), (9, 80174156), (12, 60130617), (18, 40087078), (36, 20043539), (59, 12229956), (118, 6114978), (177, 4076652), (236, 3057489), (354, 2038326), (383, 1883988), (531, 1358884), (708, 1019163), (766, 941994), (887, 813492), (1062, 679442), (1149, 627996), (1532, 470997), (1774, 406746), (2124, 339721), (2298, 313998), (2661, 271164), (3447, 209332), (3548, 203373), (4596, 156999), (5322, 135582), (6894, 104666), (7983, 90388), (10644, 67791), (13788, 52333), (15966, 45194), (22597, 31932)]