20787523636

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:686

約数の個数: 144

約数和(自身を含む): 43637832000

約数和(自身を除く): 22850308364

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 61, 68, 83, 121, 122, 166, 187, 242, 244, 332, 374, 484, 499, 671, 748, 913, 998, 1037, 1342, 1411, 1826, 1996, 2057, 2074, 2684, 2822, 3652, 4114, 4148, 5063, 5489, 5644, 7381, 8228, 8483, 10043, 10126, 10978, 11407, 14762, 15521, 16966, 20086, 20252, 21956, 22814, 29524, 30439, 31042, 33932, 40172, 41417, 45628, 55693, 60379, 60878, 62084, 82834, 86071, 93313, 111386, 120758, 121756, 125477, 165668, 170731, 172142, 186626, 222772, 241516, 250954, 334829, 341462, 344284, 373252, 455587, 501908, 517463, 612623, 669658, 682924, 704089, 911174, 946781, 1026443, 1034926, 1225246, 1339316, 1408178, 1822348, 1893562, 2052886, 2069852, 2450492, 2526437, 2816356, 3683119, 3787124, 4105772, 5011457, 5052874, 5692093, 7366238, 7744979, 10022914, 10105748, 10414591, 11384186, 14732476, 15489958, 20045828, 20829182, 22768372, 27790807, 30979916, 41658364, 42949429, 55581614, 62613023, 85194769, 85898858, 111163228, 125226046, 170389538, 171797716, 250452092, 305698877, 340779076, 472443719, 611397754, 944887438, 1222795508, 1889774876, 5196880909, 10393761818, 20787523636]

約数ペア:

[(1, 20787523636), (2, 10393761818), (4, 5196880909), (11, 1889774876), (17, 1222795508), (22, 944887438), (34, 611397754), (44, 472443719), (61, 340779076), (68, 305698877), (83, 250452092), (121, 171797716), (122, 170389538), (166, 125226046), (187, 111163228), (242, 85898858), (244, 85194769), (332, 62613023), (374, 55581614), (484, 42949429), (499, 41658364), (671, 30979916), (748, 27790807), (913, 22768372), (998, 20829182), (1037, 20045828), (1342, 15489958), (1411, 14732476), (1826, 11384186), (1996, 10414591), (2057, 10105748), (2074, 10022914), (2684, 7744979), (2822, 7366238), (3652, 5692093), (4114, 5052874), (4148, 5011457), (5063, 4105772), (5489, 3787124), (5644, 3683119), (7381, 2816356), (8228, 2526437), (8483, 2450492), (10043, 2069852), (10126, 2052886), (10978, 1893562), (11407, 1822348), (14762, 1408178), (15521, 1339316), (16966, 1225246), (20086, 1034926), (20252, 1026443), (21956, 946781), (22814, 911174), (29524, 704089), (30439, 682924), (31042, 669658), (33932, 612623), (40172, 517463), (41417, 501908), (45628, 455587), (55693, 373252), (60379, 344284), (60878, 341462), (62084, 334829), (82834, 250954), (86071, 241516), (93313, 222772), (111386, 186626), (120758, 172142), (121756, 170731), (125477, 165668)]