87422440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 236079360

約数和(自身を除く): 148656920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 53, 56, 70, 86, 106, 137, 140, 172, 212, 215, 265, 274, 280, 301, 344, 371, 424, 430, 530, 548, 602, 685, 742, 860, 959, 1060, 1096, 1204, 1370, 1484, 1505, 1720, 1855, 1918, 2120, 2279, 2408, 2740, 2968, 3010, 3710, 3836, 4558, 4795, 5480, 5891, 6020, 7261, 7420, 7672, 9116, 9590, 11395, 11782, 12040, 14522, 14840, 15953, 18232, 19180, 22790, 23564, 29044, 29455, 31906, 36305, 38360, 41237, 45580, 47128, 50827, 58088, 58910, 63812, 72610, 79765, 82474, 91160, 101654, 117820, 127624, 145220, 159530, 164948, 203308, 206185, 235640, 254135, 290440, 312223, 319060, 329896, 406616, 412370, 508270, 624446, 638120, 824740, 1016540, 1248892, 1561115, 1649480, 2033080, 2185561, 2497784, 3122230, 4371122, 6244460, 8742244, 10927805, 12488920, 17484488, 21855610, 43711220, 87422440]

約数ペア:

[(1, 87422440), (2, 43711220), (4, 21855610), (5, 17484488), (7, 12488920), (8, 10927805), (10, 8742244), (14, 6244460), (20, 4371122), (28, 3122230), (35, 2497784), (40, 2185561), (43, 2033080), (53, 1649480), (56, 1561115), (70, 1248892), (86, 1016540), (106, 824740), (137, 638120), (140, 624446), (172, 508270), (212, 412370), (215, 406616), (265, 329896), (274, 319060), (280, 312223), (301, 290440), (344, 254135), (371, 235640), (424, 206185), (430, 203308), (530, 164948), (548, 159530), (602, 145220), (685, 127624), (742, 117820), (860, 101654), (959, 91160), (1060, 82474), (1096, 79765), (1204, 72610), (1370, 63812), (1484, 58910), (1505, 58088), (1720, 50827), (1855, 47128), (1918, 45580), (2120, 41237), (2279, 38360), (2408, 36305), (2740, 31906), (2968, 29455), (3010, 29044), (3710, 23564), (3836, 22790), (4558, 19180), (4795, 18232), (5480, 15953), (5891, 14840), (6020, 14522), (7261, 12040), (7420, 11782), (7672, 11395), (9116, 9590)]