408240280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{827}}^1$

素因数の和:929

約数の個数: 128

約数和(自身を含む): 1101703680

約数和(自身を除く): 693463400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 43, 56, 70, 82, 86, 140, 164, 172, 205, 215, 280, 287, 301, 328, 344, 410, 430, 574, 602, 820, 827, 860, 1148, 1204, 1435, 1505, 1640, 1654, 1720, 1763, 2296, 2408, 2870, 3010, 3308, 3526, 4135, 5740, 5789, 6020, 6616, 7052, 8270, 8815, 11480, 11578, 12040, 12341, 14104, 16540, 17630, 23156, 24682, 28945, 33080, 33907, 35260, 35561, 46312, 49364, 57890, 61705, 67814, 70520, 71122, 98728, 115780, 123410, 135628, 142244, 169535, 177805, 231560, 237349, 246820, 248927, 271256, 284488, 339070, 355610, 474698, 493640, 497854, 678140, 711220, 949396, 995708, 1186745, 1244635, 1356280, 1422440, 1458001, 1898792, 1991416, 2373490, 2489270, 2916002, 4746980, 4978540, 5832004, 7290005, 9493960, 9957080, 10206007, 11664008, 14580010, 20412014, 29160020, 40824028, 51030035, 58320040, 81648056, 102060070, 204120140, 408240280]

約数ペア:

[(1, 408240280), (2, 204120140), (4, 102060070), (5, 81648056), (7, 58320040), (8, 51030035), (10, 40824028), (14, 29160020), (20, 20412014), (28, 14580010), (35, 11664008), (40, 10206007), (41, 9957080), (43, 9493960), (56, 7290005), (70, 5832004), (82, 4978540), (86, 4746980), (140, 2916002), (164, 2489270), (172, 2373490), (205, 1991416), (215, 1898792), (280, 1458001), (287, 1422440), (301, 1356280), (328, 1244635), (344, 1186745), (410, 995708), (430, 949396), (574, 711220), (602, 678140), (820, 497854), (827, 493640), (860, 474698), (1148, 355610), (1204, 339070), (1435, 284488), (1505, 271256), (1640, 248927), (1654, 246820), (1720, 237349), (1763, 231560), (2296, 177805), (2408, 169535), (2870, 142244), (3010, 135628), (3308, 123410), (3526, 115780), (4135, 98728), (5740, 71122), (5789, 70520), (6020, 67814), (6616, 61705), (7052, 57890), (8270, 49364), (8815, 46312), (11480, 35561), (11578, 35260), (12040, 33907), (12341, 33080), (14104, 28945), (16540, 24682), (17630, 23156)]