20050212

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 60954432

約数和(自身を除く): 40904220

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 43, 49, 52, 61, 78, 84, 86, 91, 98, 122, 129, 147, 156, 172, 182, 183, 196, 244, 258, 273, 294, 301, 364, 366, 427, 516, 546, 559, 588, 602, 637, 732, 793, 854, 903, 1092, 1118, 1204, 1274, 1281, 1586, 1677, 1708, 1806, 1911, 2107, 2236, 2379, 2548, 2562, 2623, 2989, 3172, 3354, 3612, 3822, 3913, 4214, 4758, 5124, 5246, 5551, 5978, 6321, 6708, 7644, 7826, 7869, 8428, 8967, 9516, 10492, 11102, 11739, 11956, 12642, 15652, 15738, 16653, 17934, 18361, 22204, 23478, 25284, 27391, 31476, 33306, 34099, 35868, 36722, 38857, 46956, 54782, 55083, 66612, 68198, 73444, 77714, 82173, 102297, 109564, 110166, 116571, 128527, 136396, 155428, 164346, 204594, 220332, 233142, 238693, 257054, 328692, 385581, 409188, 466284, 477386, 514108, 716079, 771162, 954772, 1432158, 1542324, 1670851, 2864316, 3341702, 5012553, 6683404, 10025106, 20050212]

約数ペア:

[(1, 20050212), (2, 10025106), (3, 6683404), (4, 5012553), (6, 3341702), (7, 2864316), (12, 1670851), (13, 1542324), (14, 1432158), (21, 954772), (26, 771162), (28, 716079), (39, 514108), (42, 477386), (43, 466284), (49, 409188), (52, 385581), (61, 328692), (78, 257054), (84, 238693), (86, 233142), (91, 220332), (98, 204594), (122, 164346), (129, 155428), (147, 136396), (156, 128527), (172, 116571), (182, 110166), (183, 109564), (196, 102297), (244, 82173), (258, 77714), (273, 73444), (294, 68198), (301, 66612), (364, 55083), (366, 54782), (427, 46956), (516, 38857), (546, 36722), (559, 35868), (588, 34099), (602, 33306), (637, 31476), (732, 27391), (793, 25284), (854, 23478), (903, 22204), (1092, 18361), (1118, 17934), (1204, 16653), (1274, 15738), (1281, 15652), (1586, 12642), (1677, 11956), (1708, 11739), (1806, 11102), (1911, 10492), (2107, 9516), (2236, 8967), (2379, 8428), (2548, 7869), (2562, 7826), (2623, 7644), (2989, 6708), (3172, 6321), (3354, 5978), (3612, 5551), (3822, 5246), (3913, 5124), (4214, 4758)]