20445348

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 63201600

約数和(自身を除く): 42756252

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 29, 33, 42, 44, 49, 58, 66, 77, 84, 87, 98, 109, 116, 132, 147, 154, 174, 196, 203, 218, 231, 294, 308, 319, 327, 348, 406, 436, 462, 539, 588, 609, 638, 654, 763, 812, 924, 957, 1078, 1199, 1218, 1276, 1308, 1421, 1526, 1617, 1914, 2156, 2233, 2289, 2398, 2436, 2842, 3052, 3161, 3234, 3597, 3828, 4263, 4466, 4578, 4796, 5341, 5684, 6322, 6468, 6699, 7194, 8393, 8526, 8932, 9156, 9483, 10682, 12644, 13398, 14388, 15631, 16023, 16786, 17052, 18966, 21364, 22127, 25179, 26796, 31262, 32046, 33572, 34771, 37932, 44254, 46893, 50358, 58751, 62524, 64092, 66381, 69542, 88508, 93786, 100716, 104313, 117502, 132762, 139084, 154889, 176253, 187572, 208626, 235004, 243397, 265524, 309778, 352506, 417252, 464667, 486794, 619556, 705012, 730191, 929334, 973588, 1460382, 1703779, 1858668, 2920764, 3407558, 5111337, 6815116, 10222674, 20445348]

約数ペア:

[(1, 20445348), (2, 10222674), (3, 6815116), (4, 5111337), (6, 3407558), (7, 2920764), (11, 1858668), (12, 1703779), (14, 1460382), (21, 973588), (22, 929334), (28, 730191), (29, 705012), (33, 619556), (42, 486794), (44, 464667), (49, 417252), (58, 352506), (66, 309778), (77, 265524), (84, 243397), (87, 235004), (98, 208626), (109, 187572), (116, 176253), (132, 154889), (147, 139084), (154, 132762), (174, 117502), (196, 104313), (203, 100716), (218, 93786), (231, 88508), (294, 69542), (308, 66381), (319, 64092), (327, 62524), (348, 58751), (406, 50358), (436, 46893), (462, 44254), (539, 37932), (588, 34771), (609, 33572), (638, 32046), (654, 31262), (763, 26796), (812, 25179), (924, 22127), (957, 21364), (1078, 18966), (1199, 17052), (1218, 16786), (1276, 16023), (1308, 15631), (1421, 14388), (1526, 13398), (1617, 12644), (1914, 10682), (2156, 9483), (2233, 9156), (2289, 8932), (2398, 8526), (2436, 8393), (2842, 7194), (3052, 6699), (3161, 6468), (3234, 6322), (3597, 5684), (3828, 5341), (4263, 4796), (4466, 4578)]