279758360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 752716800

約数和(自身を除く): 472958440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 131, 140, 145, 203, 232, 262, 263, 280, 290, 406, 524, 526, 580, 655, 812, 917, 1015, 1048, 1052, 1160, 1310, 1315, 1624, 1834, 1841, 2030, 2104, 2620, 2630, 3668, 3682, 3799, 4060, 4585, 5240, 5260, 7336, 7364, 7598, 7627, 8120, 9170, 9205, 10520, 14728, 15196, 15254, 18340, 18410, 18995, 26593, 30392, 30508, 34453, 36680, 36820, 37990, 38135, 53186, 53389, 61016, 68906, 73640, 75980, 76270, 106372, 106778, 132965, 137812, 151960, 152540, 172265, 212744, 213556, 241171, 265930, 266945, 275624, 305080, 344530, 427112, 482342, 531860, 533890, 689060, 964684, 999137, 1063720, 1067780, 1205855, 1378120, 1929368, 1998274, 2135560, 2411710, 3996548, 4823420, 4995685, 6993959, 7993096, 9646840, 9991370, 13987918, 19982740, 27975836, 34969795, 39965480, 55951672, 69939590, 139879180, 279758360]

約数ペア:

[(1, 279758360), (2, 139879180), (4, 69939590), (5, 55951672), (7, 39965480), (8, 34969795), (10, 27975836), (14, 19982740), (20, 13987918), (28, 9991370), (29, 9646840), (35, 7993096), (40, 6993959), (56, 4995685), (58, 4823420), (70, 3996548), (116, 2411710), (131, 2135560), (140, 1998274), (145, 1929368), (203, 1378120), (232, 1205855), (262, 1067780), (263, 1063720), (280, 999137), (290, 964684), (406, 689060), (524, 533890), (526, 531860), (580, 482342), (655, 427112), (812, 344530), (917, 305080), (1015, 275624), (1048, 266945), (1052, 265930), (1160, 241171), (1310, 213556), (1315, 212744), (1624, 172265), (1834, 152540), (1841, 151960), (2030, 137812), (2104, 132965), (2620, 106778), (2630, 106372), (3668, 76270), (3682, 75980), (3799, 73640), (4060, 68906), (4585, 61016), (5240, 53389), (5260, 53186), (7336, 38135), (7364, 37990), (7598, 36820), (7627, 36680), (8120, 34453), (9170, 30508), (9205, 30392), (10520, 26593), (14728, 18995), (15196, 18410), (15254, 18340)]