20041784

素因数分解:

$2^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 47401200

約数和(自身を除く): 27359416

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 41, 43, 49, 56, 58, 82, 86, 98, 116, 164, 172, 196, 203, 232, 287, 301, 328, 344, 392, 406, 574, 602, 812, 1148, 1189, 1204, 1247, 1421, 1624, 1763, 2009, 2107, 2296, 2378, 2408, 2494, 2842, 3526, 4018, 4214, 4756, 4988, 5684, 7052, 8036, 8323, 8428, 8729, 9512, 9976, 11368, 12341, 14104, 16072, 16646, 16856, 17458, 24682, 33292, 34916, 49364, 51127, 58261, 61103, 66584, 69832, 86387, 98728, 102254, 116522, 122206, 172774, 204508, 233044, 244412, 345548, 357889, 409016, 466088, 488824, 691096, 715778, 1431556, 2505223, 2863112, 5010446, 10020892, 20041784]

約数ペア:

[(1, 20041784), (2, 10020892), (4, 5010446), (7, 2863112), (8, 2505223), (14, 1431556), (28, 715778), (29, 691096), (41, 488824), (43, 466088), (49, 409016), (56, 357889), (58, 345548), (82, 244412), (86, 233044), (98, 204508), (116, 172774), (164, 122206), (172, 116522), (196, 102254), (203, 98728), (232, 86387), (287, 69832), (301, 66584), (328, 61103), (344, 58261), (392, 51127), (406, 49364), (574, 34916), (602, 33292), (812, 24682), (1148, 17458), (1189, 16856), (1204, 16646), (1247, 16072), (1421, 14104), (1624, 12341), (1763, 11368), (2009, 9976), (2107, 9512), (2296, 8729), (2378, 8428), (2408, 8323), (2494, 8036), (2842, 7052), (3526, 5684), (4018, 4988), (4214, 4756)]