19802019944

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2658703}}^1$

素因数の和:2658742

約数の個数: 48

約数和(自身を含む): 45463838400

約数和(自身を除く): 25661818456

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 3724, 7448, 2658703, 5317406, 10634812, 18610921, 21269624, 37221842, 50515357, 74443684, 101030714, 130276447, 148887368, 202061428, 260552894, 353607499, 404122856, 521105788, 707214998, 1042211576, 1414429996, 2475252493, 2828859992, 4950504986, 9901009972, 19802019944]

約数ペア:

[(1, 19802019944), (2, 9901009972), (4, 4950504986), (7, 2828859992), (8, 2475252493), (14, 1414429996), (19, 1042211576), (28, 707214998), (38, 521105788), (49, 404122856), (56, 353607499), (76, 260552894), (98, 202061428), (133, 148887368), (152, 130276447), (196, 101030714), (266, 74443684), (392, 50515357), (532, 37221842), (931, 21269624), (1064, 18610921), (1862, 10634812), (3724, 5317406), (7448, 2658703)]