278828880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3407}}^1$

素因数の和:3465

約数の個数: 160

約数和(自身を含む): 973651968

約数和(自身を除く): 694823088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 31, 33, 40, 44, 48, 55, 60, 62, 66, 80, 88, 93, 110, 120, 124, 132, 155, 165, 176, 186, 220, 240, 248, 264, 310, 330, 341, 372, 440, 465, 496, 528, 620, 660, 682, 744, 880, 930, 1023, 1240, 1320, 1364, 1488, 1705, 1860, 2046, 2480, 2640, 2728, 3407, 3410, 3720, 4092, 5115, 5456, 6814, 6820, 7440, 8184, 10221, 10230, 13628, 13640, 16368, 17035, 20442, 20460, 27256, 27280, 34070, 37477, 40884, 40920, 51105, 54512, 68140, 74954, 81768, 81840, 102210, 105617, 112431, 136280, 149908, 163536, 187385, 204420, 211234, 224862, 272560, 299816, 316851, 374770, 408840, 422468, 449724, 528085, 562155, 599632, 633702, 749540, 817680, 844936, 899448, 1056170, 1124310, 1161787, 1267404, 1499080, 1584255, 1689872, 1798896, 2112340, 2248620, 2323574, 2534808, 2998160, 3168510, 3485361, 4224680, 4497240, 4647148, 5069616, 5808935, 6337020, 6970722, 8449360, 8994480, 9294296, 11617870, 12674040, 13941444, 17426805, 18588592, 23235740, 25348080, 27882888, 34853610, 46471480, 55765776, 69707220, 92942960, 139414440, 278828880]

約数ペア:

[(1, 278828880), (2, 139414440), (3, 92942960), (4, 69707220), (5, 55765776), (6, 46471480), (8, 34853610), (10, 27882888), (11, 25348080), (12, 23235740), (15, 18588592), (16, 17426805), (20, 13941444), (22, 12674040), (24, 11617870), (30, 9294296), (31, 8994480), (33, 8449360), (40, 6970722), (44, 6337020), (48, 5808935), (55, 5069616), (60, 4647148), (62, 4497240), (66, 4224680), (80, 3485361), (88, 3168510), (93, 2998160), (110, 2534808), (120, 2323574), (124, 2248620), (132, 2112340), (155, 1798896), (165, 1689872), (176, 1584255), (186, 1499080), (220, 1267404), (240, 1161787), (248, 1124310), (264, 1056170), (310, 899448), (330, 844936), (341, 817680), (372, 749540), (440, 633702), (465, 599632), (496, 562155), (528, 528085), (620, 449724), (660, 422468), (682, 408840), (744, 374770), (880, 316851), (930, 299816), (1023, 272560), (1240, 224862), (1320, 211234), (1364, 204420), (1488, 187385), (1705, 163536), (1860, 149908), (2046, 136280), (2480, 112431), (2640, 105617), (2728, 102210), (3407, 81840), (3410, 81768), (3720, 74954), (4092, 68140), (5115, 54512), (5456, 51105), (6814, 40920), (6820, 40884), (7440, 37477), (8184, 34070), (10221, 27280), (10230, 27256), (13628, 20460), (13640, 20442), (16368, 17035)]