278680920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3221}}^1$

素因数の和:3345

約数の個数: 128

約数和(自身を含む): 965053440

約数和(自身を除く): 686372520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 103, 105, 120, 140, 168, 206, 210, 280, 309, 412, 420, 515, 618, 721, 824, 840, 1030, 1236, 1442, 1545, 2060, 2163, 2472, 2884, 3090, 3221, 3605, 4120, 4326, 5768, 6180, 6442, 7210, 8652, 9663, 10815, 12360, 12884, 14420, 16105, 17304, 19326, 21630, 22547, 25768, 28840, 32210, 38652, 43260, 45094, 48315, 64420, 67641, 77304, 86520, 90188, 96630, 112735, 128840, 135282, 180376, 193260, 225470, 270564, 331763, 338205, 386520, 450940, 541128, 663526, 676410, 901880, 995289, 1327052, 1352820, 1658815, 1990578, 2322341, 2654104, 2705640, 3317630, 3981156, 4644682, 4976445, 6635260, 6967023, 7962312, 9289364, 9952890, 11611705, 13270520, 13934046, 18578728, 19905780, 23223410, 27868092, 34835115, 39811560, 46446820, 55736184, 69670230, 92893640, 139340460, 278680920]

約数ペア:

[(1, 278680920), (2, 139340460), (3, 92893640), (4, 69670230), (5, 55736184), (6, 46446820), (7, 39811560), (8, 34835115), (10, 27868092), (12, 23223410), (14, 19905780), (15, 18578728), (20, 13934046), (21, 13270520), (24, 11611705), (28, 9952890), (30, 9289364), (35, 7962312), (40, 6967023), (42, 6635260), (56, 4976445), (60, 4644682), (70, 3981156), (84, 3317630), (103, 2705640), (105, 2654104), (120, 2322341), (140, 1990578), (168, 1658815), (206, 1352820), (210, 1327052), (280, 995289), (309, 901880), (412, 676410), (420, 663526), (515, 541128), (618, 450940), (721, 386520), (824, 338205), (840, 331763), (1030, 270564), (1236, 225470), (1442, 193260), (1545, 180376), (2060, 135282), (2163, 128840), (2472, 112735), (2884, 96630), (3090, 90188), (3221, 86520), (3605, 77304), (4120, 67641), (4326, 64420), (5768, 48315), (6180, 45094), (6442, 43260), (7210, 38652), (8652, 32210), (9663, 28840), (10815, 25768), (12360, 22547), (12884, 21630), (14420, 19326), (16105, 17304)]