20189772972

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{449741}}^1$

素因数の和:449823

約数の個数: 72

約数和(自身を含む): 54023009040

約数和(自身を除く): 33833236068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 43, 58, 86, 87, 116, 129, 172, 174, 258, 261, 348, 387, 516, 522, 774, 1044, 1247, 1548, 2494, 3741, 4988, 7482, 11223, 14964, 22446, 44892, 449741, 899482, 1349223, 1798964, 2698446, 4047669, 5396892, 8095338, 13042489, 16190676, 19338863, 26084978, 38677726, 39127467, 52169956, 58016589, 77355452, 78254934, 116033178, 117382401, 156509868, 174049767, 232066356, 234764802, 348099534, 469529604, 560827027, 696199068, 1121654054, 1682481081, 2243308108, 3364962162, 5047443243, 6729924324, 10094886486, 20189772972]

約数ペア:

[(1, 20189772972), (2, 10094886486), (3, 6729924324), (4, 5047443243), (6, 3364962162), (9, 2243308108), (12, 1682481081), (18, 1121654054), (29, 696199068), (36, 560827027), (43, 469529604), (58, 348099534), (86, 234764802), (87, 232066356), (116, 174049767), (129, 156509868), (172, 117382401), (174, 116033178), (258, 78254934), (261, 77355452), (348, 58016589), (387, 52169956), (516, 39127467), (522, 38677726), (774, 26084978), (1044, 19338863), (1247, 16190676), (1548, 13042489), (2494, 8095338), (3741, 5396892), (4988, 4047669), (7482, 2698446), (11223, 1798964), (14964, 1349223), (22446, 899482), (44892, 449741)]