20302828

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{193}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 46693472

約数和(自身を除く): 26390644

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 193, 221, 238, 289, 364, 386, 442, 476, 578, 772, 884, 1156, 1351, 1547, 2023, 2509, 2702, 3094, 3281, 3757, 4046, 5018, 5404, 6188, 6562, 7514, 8092, 10036, 13124, 15028, 17563, 22967, 26299, 35126, 42653, 45934, 52598, 55777, 70252, 85306, 91868, 105196, 111554, 170612, 223108, 298571, 390439, 597142, 725101, 780878, 1194284, 1450202, 1561756, 2900404, 5075707, 10151414, 20302828]

約数ペア:

[(1, 20302828), (2, 10151414), (4, 5075707), (7, 2900404), (13, 1561756), (14, 1450202), (17, 1194284), (26, 780878), (28, 725101), (34, 597142), (52, 390439), (68, 298571), (91, 223108), (119, 170612), (182, 111554), (193, 105196), (221, 91868), (238, 85306), (289, 70252), (364, 55777), (386, 52598), (442, 45934), (476, 42653), (578, 35126), (772, 26299), (884, 22967), (1156, 17563), (1351, 15028), (1547, 13124), (2023, 10036), (2509, 8092), (2702, 7514), (3094, 6562), (3281, 6188), (3757, 5404), (4046, 5018)]