1640648744

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1\times {\mathrm{977}}^1$

素因数の和:1338

約数の個数: 64

約数和(自身を含む): 3560232960

約数和(自身を除く): 1919584216

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 191, 314, 382, 628, 764, 977, 1099, 1256, 1337, 1528, 1954, 2198, 2674, 3908, 4396, 5348, 6839, 7816, 8792, 10696, 13678, 27356, 29987, 54712, 59974, 119948, 153389, 186607, 209909, 239896, 306778, 373214, 419818, 613556, 746428, 839636, 1073723, 1227112, 1306249, 1492856, 1679272, 2147446, 2612498, 4294892, 5224996, 8589784, 10449992, 29297299, 58594598, 117189196, 205081093, 234378392, 410162186, 820324372, 1640648744]

約数ペア:

[(1, 1640648744), (2, 820324372), (4, 410162186), (7, 234378392), (8, 205081093), (14, 117189196), (28, 58594598), (56, 29297299), (157, 10449992), (191, 8589784), (314, 5224996), (382, 4294892), (628, 2612498), (764, 2147446), (977, 1679272), (1099, 1492856), (1256, 1306249), (1337, 1227112), (1528, 1073723), (1954, 839636), (2198, 746428), (2674, 613556), (3908, 419818), (4396, 373214), (5348, 306778), (6839, 239896), (7816, 209909), (8792, 186607), (10696, 153389), (13678, 119948), (27356, 59974), (29987, 54712)]