20778811204

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{81769}}^1$

素因数の和:81928

約数の個数: 48

約数和(自身を含む): 39934505520

約数和(自身を除く): 19155694316

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 101, 148, 202, 404, 629, 1258, 1717, 2516, 3434, 3737, 6868, 7474, 14948, 63529, 81769, 127058, 163538, 254116, 327076, 1390073, 2780146, 3025453, 5560292, 6050906, 8258669, 12101812, 16517338, 33034676, 51432701, 102865402, 140397373, 205730804, 280794746, 305570753, 561589492, 611141506, 1222283012, 5194702801, 10389405602, 20778811204]

約数ペア:

[(1, 20778811204), (2, 10389405602), (4, 5194702801), (17, 1222283012), (34, 611141506), (37, 561589492), (68, 305570753), (74, 280794746), (101, 205730804), (148, 140397373), (202, 102865402), (404, 51432701), (629, 33034676), (1258, 16517338), (1717, 12101812), (2516, 8258669), (3434, 6050906), (3737, 5560292), (6868, 3025453), (7474, 2780146), (14948, 1390073), (63529, 327076), (81769, 254116), (127058, 163538)]