20187917092

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{77269}}^1$

素因数の和:77361

約数の個数: 72

約数和(自身を含む): 43409667840

約数和(自身を除く): 23221750748

約数列:

[1, 2, 4, 7, 14, 28, 31, 43, 49, 62, 86, 98, 124, 172, 196, 217, 301, 434, 602, 868, 1204, 1333, 1519, 2107, 2666, 3038, 4214, 5332, 6076, 8428, 9331, 18662, 37324, 65317, 77269, 130634, 154538, 261268, 309076, 540883, 1081766, 2163532, 2395339, 3322567, 3786181, 4790678, 6645134, 7572362, 9581356, 13290268, 15144724, 16767373, 23257969, 33534746, 46515938, 67069492, 93031876, 102999577, 117371611, 162805783, 205999154, 234743222, 325611566, 411998308, 469486444, 651223132, 720997039, 1441994078, 2883988156, 5046979273, 10093958546, 20187917092]

約数ペア:

[(1, 20187917092), (2, 10093958546), (4, 5046979273), (7, 2883988156), (14, 1441994078), (28, 720997039), (31, 651223132), (43, 469486444), (49, 411998308), (62, 325611566), (86, 234743222), (98, 205999154), (124, 162805783), (172, 117371611), (196, 102999577), (217, 93031876), (301, 67069492), (434, 46515938), (602, 33534746), (868, 23257969), (1204, 16767373), (1333, 15144724), (1519, 13290268), (2107, 9581356), (2666, 7572362), (3038, 6645134), (4214, 4790678), (5332, 3786181), (6076, 3322567), (8428, 2395339), (9331, 2163532), (18662, 1081766), (37324, 540883), (65317, 309076), (77269, 261268), (130634, 154538)]