20920102

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 40550400

約数和(自身を除く): 19630298

約数列:

[1, 2, 7, 14, 19, 31, 38, 43, 59, 62, 86, 118, 133, 217, 266, 301, 413, 434, 589, 602, 817, 826, 1121, 1178, 1333, 1634, 1829, 2242, 2537, 2666, 3658, 4123, 5074, 5719, 7847, 8246, 9331, 11438, 12803, 15694, 17759, 18662, 25327, 25606, 34751, 35518, 48203, 50654, 69502, 78647, 96406, 157294, 177289, 243257, 337421, 354578, 486514, 550529, 674842, 1101058, 1494293, 2988586, 10460051, 20920102]

約数ペア:

[(1, 20920102), (2, 10460051), (7, 2988586), (14, 1494293), (19, 1101058), (31, 674842), (38, 550529), (43, 486514), (59, 354578), (62, 337421), (86, 243257), (118, 177289), (133, 157294), (217, 96406), (266, 78647), (301, 69502), (413, 50654), (434, 48203), (589, 35518), (602, 34751), (817, 25606), (826, 25327), (1121, 18662), (1178, 17759), (1333, 15694), (1634, 12803), (1829, 11438), (2242, 9331), (2537, 8246), (2666, 7847), (3658, 5719), (4123, 5074)]