20147281320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1787}}^1\times {\mathrm{1999}}^1$

素因数の和:3847

約数の個数: 128

約数和(自身を含む): 61793280000

約数和(自身を除く): 41645998680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1787, 1880, 1999, 2820, 3574, 3998, 5361, 5640, 5997, 7148, 7996, 8935, 9995, 10722, 11994, 14296, 15992, 17870, 19990, 21444, 23988, 26805, 29985, 35740, 39980, 42888, 47976, 53610, 59970, 71480, 79960, 83989, 93953, 107220, 119940, 167978, 187906, 214440, 239880, 251967, 281859, 335956, 375812, 419945, 469765, 503934, 563718, 671912, 751624, 839890, 939530, 1007868, 1127436, 1259835, 1409295, 1679780, 1879060, 2015736, 2254872, 2519670, 2818590, 3359560, 3572213, 3758120, 5039340, 5637180, 7144426, 10078680, 10716639, 11274360, 14288852, 17861065, 21433278, 28577704, 35722130, 42866556, 53583195, 71444260, 85733112, 107166390, 142888520, 167894011, 214332780, 335788022, 428665560, 503682033, 671576044, 839470055, 1007364066, 1343152088, 1678940110, 2014728132, 2518410165, 3357880220, 4029456264, 5036820330, 6715760440, 10073640660, 20147281320]

約数ペア:

[(1, 20147281320), (2, 10073640660), (3, 6715760440), (4, 5036820330), (5, 4029456264), (6, 3357880220), (8, 2518410165), (10, 2014728132), (12, 1678940110), (15, 1343152088), (20, 1007364066), (24, 839470055), (30, 671576044), (40, 503682033), (47, 428665560), (60, 335788022), (94, 214332780), (120, 167894011), (141, 142888520), (188, 107166390), (235, 85733112), (282, 71444260), (376, 53583195), (470, 42866556), (564, 35722130), (705, 28577704), (940, 21433278), (1128, 17861065), (1410, 14288852), (1787, 11274360), (1880, 10716639), (1999, 10078680), (2820, 7144426), (3574, 5637180), (3998, 5039340), (5361, 3758120), (5640, 3572213), (5997, 3359560), (7148, 2818590), (7996, 2519670), (8935, 2254872), (9995, 2015736), (10722, 1879060), (11994, 1679780), (14296, 1409295), (15992, 1259835), (17870, 1127436), (19990, 1007868), (21444, 939530), (23988, 839890), (26805, 751624), (29985, 671912), (35740, 563718), (39980, 503934), (42888, 469765), (47976, 419945), (53610, 375812), (59970, 335956), (71480, 281859), (79960, 251967), (83989, 239880), (93953, 214440), (107220, 187906), (119940, 167978)]