19999320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:273

約数の個数: 128

約数和(自身を含む): 66528000

約数和(自身を除く): 46528680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 109, 110, 120, 132, 139, 165, 218, 220, 264, 278, 327, 330, 417, 436, 440, 545, 556, 654, 660, 695, 834, 872, 1090, 1112, 1199, 1308, 1320, 1390, 1529, 1635, 1668, 2085, 2180, 2398, 2616, 2780, 3058, 3270, 3336, 3597, 4170, 4360, 4587, 4796, 5560, 5995, 6116, 6540, 7194, 7645, 8340, 9174, 9592, 11990, 12232, 13080, 14388, 15151, 15290, 16680, 17985, 18348, 22935, 23980, 28776, 30302, 30580, 35970, 36696, 45453, 45870, 47960, 60604, 61160, 71940, 75755, 90906, 91740, 121208, 143880, 151510, 166661, 181812, 183480, 227265, 303020, 333322, 363624, 454530, 499983, 606040, 666644, 833305, 909060, 999966, 1333288, 1666610, 1818120, 1999932, 2499915, 3333220, 3999864, 4999830, 6666440, 9999660, 19999320]

約数ペア:

[(1, 19999320), (2, 9999660), (3, 6666440), (4, 4999830), (5, 3999864), (6, 3333220), (8, 2499915), (10, 1999932), (11, 1818120), (12, 1666610), (15, 1333288), (20, 999966), (22, 909060), (24, 833305), (30, 666644), (33, 606040), (40, 499983), (44, 454530), (55, 363624), (60, 333322), (66, 303020), (88, 227265), (109, 183480), (110, 181812), (120, 166661), (132, 151510), (139, 143880), (165, 121208), (218, 91740), (220, 90906), (264, 75755), (278, 71940), (327, 61160), (330, 60604), (417, 47960), (436, 45870), (440, 45453), (545, 36696), (556, 35970), (654, 30580), (660, 30302), (695, 28776), (834, 23980), (872, 22935), (1090, 18348), (1112, 17985), (1199, 16680), (1308, 15290), (1320, 15151), (1390, 14388), (1529, 13080), (1635, 12232), (1668, 11990), (2085, 9592), (2180, 9174), (2398, 8340), (2616, 7645), (2780, 7194), (3058, 6540), (3270, 6116), (3336, 5995), (3597, 5560), (4170, 4796), (4360, 4587)]