1999404008

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1\times {\mathrm{1277}}^1$

素因数の和:1746

約数の個数: 64

約数和(自身を含む): 4357877760

約数和(自身を除く): 2358473752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 383, 511, 584, 766, 1022, 1277, 1532, 2044, 2554, 2681, 3064, 4088, 5108, 5362, 8939, 10216, 10724, 17878, 21448, 27959, 35756, 55918, 71512, 93221, 111836, 186442, 195713, 223672, 372884, 391426, 489091, 652547, 745768, 782852, 978182, 1305094, 1565704, 1956364, 2610188, 3423637, 3912728, 5220376, 6847274, 13694548, 27389096, 35703643, 71407286, 142814572, 249925501, 285629144, 499851002, 999702004, 1999404008]

約数ペア:

[(1, 1999404008), (2, 999702004), (4, 499851002), (7, 285629144), (8, 249925501), (14, 142814572), (28, 71407286), (56, 35703643), (73, 27389096), (146, 13694548), (292, 6847274), (383, 5220376), (511, 3912728), (584, 3423637), (766, 2610188), (1022, 1956364), (1277, 1565704), (1532, 1305094), (2044, 978182), (2554, 782852), (2681, 745768), (3064, 652547), (4088, 489091), (5108, 391426), (5362, 372884), (8939, 223672), (10216, 195713), (10724, 186442), (17878, 111836), (21448, 93221), (27959, 71512), (35756, 55918)]