210901240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 540587520

約数和(自身を除く): 329686280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 71, 86, 88, 110, 142, 157, 172, 215, 220, 284, 314, 344, 355, 430, 440, 473, 568, 628, 710, 781, 785, 860, 946, 1256, 1420, 1562, 1570, 1720, 1727, 1892, 2365, 2840, 3053, 3124, 3140, 3454, 3784, 3905, 4730, 6106, 6248, 6280, 6751, 6908, 7810, 8635, 9460, 11147, 12212, 13502, 13816, 15265, 15620, 17270, 18920, 22294, 24424, 27004, 30530, 31240, 33583, 33755, 34540, 44588, 54008, 55735, 61060, 67166, 67510, 69080, 74261, 89176, 111470, 122120, 122617, 134332, 135020, 148522, 167915, 222940, 245234, 268664, 270040, 297044, 335830, 371305, 445880, 479321, 490468, 594088, 613085, 671660, 742610, 958642, 980936, 1226170, 1343320, 1485220, 1917284, 2396605, 2452340, 2970440, 3834568, 4793210, 4904680, 5272531, 9586420, 10545062, 19172840, 21090124, 26362655, 42180248, 52725310, 105450620, 210901240]

約数ペア:

[(1, 210901240), (2, 105450620), (4, 52725310), (5, 42180248), (8, 26362655), (10, 21090124), (11, 19172840), (20, 10545062), (22, 9586420), (40, 5272531), (43, 4904680), (44, 4793210), (55, 3834568), (71, 2970440), (86, 2452340), (88, 2396605), (110, 1917284), (142, 1485220), (157, 1343320), (172, 1226170), (215, 980936), (220, 958642), (284, 742610), (314, 671660), (344, 613085), (355, 594088), (430, 490468), (440, 479321), (473, 445880), (568, 371305), (628, 335830), (710, 297044), (781, 270040), (785, 268664), (860, 245234), (946, 222940), (1256, 167915), (1420, 148522), (1562, 135020), (1570, 134332), (1720, 122617), (1727, 122120), (1892, 111470), (2365, 89176), (2840, 74261), (3053, 69080), (3124, 67510), (3140, 67166), (3454, 61060), (3784, 55735), (3905, 54008), (4730, 44588), (6106, 34540), (6248, 33755), (6280, 33583), (6751, 31240), (6908, 30530), (7810, 27004), (8635, 24424), (9460, 22294), (11147, 18920), (12212, 17270), (13502, 15620), (13816, 15265)]