202180840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 494968320

約数和(自身を除く): 292787480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 47, 61, 82, 86, 94, 122, 164, 172, 188, 205, 215, 235, 244, 305, 328, 344, 376, 410, 430, 470, 488, 610, 820, 860, 940, 1220, 1640, 1720, 1763, 1880, 1927, 2021, 2440, 2501, 2623, 2867, 3526, 3854, 4042, 5002, 5246, 5734, 7052, 7708, 8084, 8815, 9635, 10004, 10105, 10492, 11468, 12505, 13115, 14104, 14335, 15416, 16168, 17630, 19270, 20008, 20210, 20984, 22936, 25010, 26230, 28670, 35260, 38540, 40420, 50020, 52460, 57340, 70520, 77080, 80840, 82861, 100040, 104920, 107543, 114680, 117547, 123281, 165722, 215086, 235094, 246562, 331444, 414305, 430172, 470188, 493124, 537715, 587735, 616405, 662888, 828610, 860344, 940376, 986248, 1075430, 1175470, 1232810, 1657220, 2150860, 2350940, 2465620, 3314440, 4301720, 4701880, 4931240, 5054521, 10109042, 20218084, 25272605, 40436168, 50545210, 101090420, 202180840]

約数ペア:

[(1, 202180840), (2, 101090420), (4, 50545210), (5, 40436168), (8, 25272605), (10, 20218084), (20, 10109042), (40, 5054521), (41, 4931240), (43, 4701880), (47, 4301720), (61, 3314440), (82, 2465620), (86, 2350940), (94, 2150860), (122, 1657220), (164, 1232810), (172, 1175470), (188, 1075430), (205, 986248), (215, 940376), (235, 860344), (244, 828610), (305, 662888), (328, 616405), (344, 587735), (376, 537715), (410, 493124), (430, 470188), (470, 430172), (488, 414305), (610, 331444), (820, 246562), (860, 235094), (940, 215086), (1220, 165722), (1640, 123281), (1720, 117547), (1763, 114680), (1880, 107543), (1927, 104920), (2021, 100040), (2440, 82861), (2501, 80840), (2623, 77080), (2867, 70520), (3526, 57340), (3854, 52460), (4042, 50020), (5002, 40420), (5246, 38540), (5734, 35260), (7052, 28670), (7708, 26230), (8084, 25010), (8815, 22936), (9635, 20984), (10004, 20210), (10105, 20008), (10492, 19270), (11468, 17630), (12505, 16168), (13115, 15416), (14104, 14335)]