248840560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:323

約数の個数: 120

約数和(自身を含む): 630406080

約数和(自身を除く): 381565520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 229, 235, 272, 289, 340, 376, 458, 470, 578, 680, 752, 799, 916, 940, 1145, 1156, 1360, 1445, 1598, 1832, 1880, 2290, 2312, 2890, 3196, 3664, 3760, 3893, 3995, 4580, 4624, 5780, 6392, 7786, 7990, 9160, 10763, 11560, 12784, 13583, 15572, 15980, 18320, 19465, 21526, 23120, 27166, 31144, 31960, 38930, 43052, 53815, 54332, 62288, 63920, 66181, 67915, 77860, 86104, 107630, 108664, 132362, 135830, 155720, 172208, 182971, 215260, 217328, 264724, 271660, 311440, 330905, 365942, 430520, 529448, 543320, 661810, 731884, 861040, 914855, 1058896, 1086640, 1323620, 1463768, 1829710, 2647240, 2927536, 3110507, 3659420, 5294480, 6221014, 7318840, 12442028, 14637680, 15552535, 24884056, 31105070, 49768112, 62210140, 124420280, 248840560]

約数ペア:

[(1, 248840560), (2, 124420280), (4, 62210140), (5, 49768112), (8, 31105070), (10, 24884056), (16, 15552535), (17, 14637680), (20, 12442028), (34, 7318840), (40, 6221014), (47, 5294480), (68, 3659420), (80, 3110507), (85, 2927536), (94, 2647240), (136, 1829710), (170, 1463768), (188, 1323620), (229, 1086640), (235, 1058896), (272, 914855), (289, 861040), (340, 731884), (376, 661810), (458, 543320), (470, 529448), (578, 430520), (680, 365942), (752, 330905), (799, 311440), (916, 271660), (940, 264724), (1145, 217328), (1156, 215260), (1360, 182971), (1445, 172208), (1598, 155720), (1832, 135830), (1880, 132362), (2290, 108664), (2312, 107630), (2890, 86104), (3196, 77860), (3664, 67915), (3760, 66181), (3893, 63920), (3995, 62288), (4580, 54332), (4624, 53815), (5780, 43052), (6392, 38930), (7786, 31960), (7990, 31144), (9160, 27166), (10763, 23120), (11560, 21526), (12784, 19465), (13583, 18320), (15572, 15980)]