81649964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1049}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 164052000

約数和(自身を除く): 82402036

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 61, 116, 122, 244, 319, 638, 671, 1049, 1276, 1342, 1769, 2098, 2684, 3538, 4196, 7076, 11539, 19459, 23078, 30421, 38918, 46156, 60842, 63989, 77836, 121684, 127978, 255956, 334631, 669262, 703879, 1338524, 1407758, 1855681, 2815516, 3711362, 7422724, 20412491, 40824982, 81649964]

約数ペア:

[(1, 81649964), (2, 40824982), (4, 20412491), (11, 7422724), (22, 3711362), (29, 2815516), (44, 1855681), (58, 1407758), (61, 1338524), (116, 703879), (122, 669262), (244, 334631), (319, 255956), (638, 127978), (671, 121684), (1049, 77836), (1276, 63989), (1342, 60842), (1769, 46156), (2098, 38918), (2684, 30421), (3538, 23078), (4196, 19459), (7076, 11539)]