201938320

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1249}}^1$

素因数の和:1352

約数の個数: 80

約数和(自身を含む): 491040000

約数和(自身を除く): 289101680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 47, 80, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 688, 752, 860, 940, 1249, 1720, 1880, 2021, 2498, 3440, 3760, 4042, 4996, 6245, 8084, 9992, 10105, 12490, 16168, 19984, 20210, 24980, 32336, 40420, 49960, 53707, 58703, 80840, 99920, 107414, 117406, 161680, 214828, 234812, 268535, 293515, 429656, 469624, 537070, 587030, 859312, 939248, 1074140, 1174060, 2148280, 2348120, 2524229, 4296560, 4696240, 5048458, 10096916, 12621145, 20193832, 25242290, 40387664, 50484580, 100969160, 201938320]

約数ペア:

[(1, 201938320), (2, 100969160), (4, 50484580), (5, 40387664), (8, 25242290), (10, 20193832), (16, 12621145), (20, 10096916), (40, 5048458), (43, 4696240), (47, 4296560), (80, 2524229), (86, 2348120), (94, 2148280), (172, 1174060), (188, 1074140), (215, 939248), (235, 859312), (344, 587030), (376, 537070), (430, 469624), (470, 429656), (688, 293515), (752, 268535), (860, 234812), (940, 214828), (1249, 161680), (1720, 117406), (1880, 107414), (2021, 99920), (2498, 80840), (3440, 58703), (3760, 53707), (4042, 49960), (4996, 40420), (6245, 32336), (8084, 24980), (9992, 20210), (10105, 19984), (12490, 16168)]