390409803

素因数分解:

$3^2\times 7^5\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 688240800

約数和(自身を除く): 297830997

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 89, 147, 203, 261, 267, 343, 441, 609, 623, 801, 1029, 1421, 1827, 1869, 2401, 2581, 3087, 4263, 4361, 5607, 7203, 7743, 9947, 12789, 13083, 16807, 18067, 21609, 23229, 29841, 30527, 39249, 50421, 54201, 69629, 89523, 91581, 126469, 151263, 162603, 208887, 213689, 274743, 379407, 487403, 626661, 641067, 885283, 1138221, 1462209, 1495823, 1923201, 2655849, 4386627, 4487469, 6196981, 7967547, 13462407, 18590943, 43378867, 55772829, 130136601, 390409803]

約数ペア:

[(1, 390409803), (3, 130136601), (7, 55772829), (9, 43378867), (21, 18590943), (29, 13462407), (49, 7967547), (63, 6196981), (87, 4487469), (89, 4386627), (147, 2655849), (203, 1923201), (261, 1495823), (267, 1462209), (343, 1138221), (441, 885283), (609, 641067), (623, 626661), (801, 487403), (1029, 379407), (1421, 274743), (1827, 213689), (1869, 208887), (2401, 162603), (2581, 151263), (3087, 126469), (4263, 91581), (4361, 89523), (5607, 69629), (7203, 54201), (7743, 50421), (9947, 39249), (12789, 30527), (13083, 29841), (16807, 23229), (18067, 21609)]