257620986

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1447}}^1$

素因数の和:1625

約数の個数: 80

約数和(自身を含む): 664388736

約数和(自身を除く): 406767750

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 157, 162, 189, 314, 378, 471, 567, 942, 1099, 1134, 1413, 1447, 2198, 2826, 2894, 3297, 4239, 4341, 6594, 8478, 8682, 9891, 10129, 12717, 13023, 19782, 20258, 25434, 26046, 29673, 30387, 39069, 59346, 60774, 78138, 89019, 91161, 117207, 178038, 182322, 227179, 234414, 273483, 454358, 546966, 681537, 820449, 1363074, 1590253, 1640898, 2044611, 3180506, 4089222, 4770759, 6133833, 9541518, 12267666, 14312277, 18401499, 28624554, 36802998, 42936831, 85873662, 128810493, 257620986]

約数ペア:

[(1, 257620986), (2, 128810493), (3, 85873662), (6, 42936831), (7, 36802998), (9, 28624554), (14, 18401499), (18, 14312277), (21, 12267666), (27, 9541518), (42, 6133833), (54, 4770759), (63, 4089222), (81, 3180506), (126, 2044611), (157, 1640898), (162, 1590253), (189, 1363074), (314, 820449), (378, 681537), (471, 546966), (567, 454358), (942, 273483), (1099, 234414), (1134, 227179), (1413, 182322), (1447, 178038), (2198, 117207), (2826, 91161), (2894, 89019), (3297, 78138), (4239, 60774), (4341, 59346), (6594, 39069), (8478, 30387), (8682, 29673), (9891, 26046), (10129, 25434), (12717, 20258), (13023, 19782)]