28101892

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 63345240

約数和(自身を除く): 35243348

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 49, 52, 82, 91, 98, 164, 182, 196, 269, 287, 364, 533, 538, 574, 637, 1066, 1076, 1148, 1274, 1883, 2009, 2132, 2548, 3497, 3731, 3766, 4018, 6994, 7462, 7532, 8036, 11029, 13181, 13988, 14924, 22058, 24479, 26117, 26362, 44116, 48958, 52234, 52724, 77203, 97916, 104468, 143377, 154406, 171353, 286754, 308812, 342706, 540421, 573508, 685412, 1003639, 1080842, 2007278, 2161684, 4014556, 7025473, 14050946, 28101892]

約数ペア:

[(1, 28101892), (2, 14050946), (4, 7025473), (7, 4014556), (13, 2161684), (14, 2007278), (26, 1080842), (28, 1003639), (41, 685412), (49, 573508), (52, 540421), (82, 342706), (91, 308812), (98, 286754), (164, 171353), (182, 154406), (196, 143377), (269, 104468), (287, 97916), (364, 77203), (533, 52724), (538, 52234), (574, 48958), (637, 44116), (1066, 26362), (1076, 26117), (1148, 24479), (1274, 22058), (1883, 14924), (2009, 13988), (2132, 13181), (2548, 11029), (3497, 8036), (3731, 7532), (3766, 7462), (4018, 6994)]