279960240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{166643}}^1$

素因数の和:166666

約数の個数: 80

約数和(自身を含む): 991865088

約数和(自身を除く): 711904848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 166643, 333286, 499929, 666572, 833215, 999858, 1166501, 1333144, 1666430, 1999716, 2333002, 2499645, 2666288, 3332860, 3499503, 3999432, 4666004, 4999290, 5832505, 6665720, 6999006, 7998864, 9332008, 9998580, 11665010, 13331440, 13998012, 17497515, 18664016, 19997160, 23330020, 27996024, 34995030, 39994320, 46660040, 55992048, 69990060, 93320080, 139980120, 279960240]

約数ペア:

[(1, 279960240), (2, 139980120), (3, 93320080), (4, 69990060), (5, 55992048), (6, 46660040), (7, 39994320), (8, 34995030), (10, 27996024), (12, 23330020), (14, 19997160), (15, 18664016), (16, 17497515), (20, 13998012), (21, 13331440), (24, 11665010), (28, 9998580), (30, 9332008), (35, 7998864), (40, 6999006), (42, 6665720), (48, 5832505), (56, 4999290), (60, 4666004), (70, 3999432), (80, 3499503), (84, 3332860), (105, 2666288), (112, 2499645), (120, 2333002), (140, 1999716), (168, 1666430), (210, 1333144), (240, 1166501), (280, 999858), (336, 833215), (420, 666572), (560, 499929), (840, 333286), (1680, 166643)]