173721720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 539447040

約数和(自身を除く): 365725320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 131, 172, 215, 257, 258, 262, 344, 393, 430, 514, 516, 524, 645, 655, 771, 786, 860, 1028, 1032, 1048, 1285, 1290, 1310, 1542, 1572, 1720, 1965, 2056, 2570, 2580, 2620, 3084, 3144, 3855, 3930, 5140, 5160, 5240, 5633, 6168, 7710, 7860, 10280, 11051, 11266, 15420, 15720, 16899, 22102, 22532, 28165, 30840, 33153, 33667, 33798, 44204, 45064, 55255, 56330, 66306, 67334, 67596, 84495, 88408, 101001, 110510, 112660, 132612, 134668, 135192, 165765, 168335, 168990, 202002, 221020, 225320, 265224, 269336, 331530, 336670, 337980, 404004, 442040, 505005, 663060, 673340, 675960, 808008, 1010010, 1326120, 1346680, 1447681, 2020020, 2895362, 4040040, 4343043, 5790724, 7238405, 8686086, 11581448, 14476810, 17372172, 21715215, 28953620, 34744344, 43430430, 57907240, 86860860, 173721720]

約数ペア:

[(1, 173721720), (2, 86860860), (3, 57907240), (4, 43430430), (5, 34744344), (6, 28953620), (8, 21715215), (10, 17372172), (12, 14476810), (15, 11581448), (20, 8686086), (24, 7238405), (30, 5790724), (40, 4343043), (43, 4040040), (60, 2895362), (86, 2020020), (120, 1447681), (129, 1346680), (131, 1326120), (172, 1010010), (215, 808008), (257, 675960), (258, 673340), (262, 663060), (344, 505005), (393, 442040), (430, 404004), (514, 337980), (516, 336670), (524, 331530), (645, 269336), (655, 265224), (771, 225320), (786, 221020), (860, 202002), (1028, 168990), (1032, 168335), (1048, 165765), (1285, 135192), (1290, 134668), (1310, 132612), (1542, 112660), (1572, 110510), (1720, 101001), (1965, 88408), (2056, 84495), (2570, 67596), (2580, 67334), (2620, 66306), (3084, 56330), (3144, 55255), (3855, 45064), (3930, 44204), (5140, 33798), (5160, 33667), (5240, 33153), (5633, 30840), (6168, 28165), (7710, 22532), (7860, 22102), (10280, 16899), (11051, 15720), (11266, 15420)]