20100222765

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{9551}}^1$

素因数の和:9720

約数の個数: 128

約数和(自身を含む): 43575459840

約数和(自身を除く): 23475237075

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 85, 105, 119, 131, 135, 153, 189, 255, 315, 357, 393, 459, 595, 655, 765, 917, 945, 1071, 1179, 1785, 1965, 2227, 2295, 2751, 3213, 3537, 4585, 5355, 5895, 6681, 8253, 9551, 11135, 13755, 15589, 16065, 17685, 20043, 24759, 28653, 33405, 41265, 46767, 47755, 60129, 66857, 77945, 85959, 100215, 123795, 140301, 143265, 162367, 200571, 233835, 257877, 300645, 334285, 420903, 429795, 487101, 601713, 701505, 811835, 1002855, 1136569, 1251181, 1289385, 1461303, 1805139, 2104515, 2435505, 3008565, 3409707, 3753543, 4383909, 5682845, 6255905, 7306515, 8758267, 9025695, 10229121, 11260629, 17048535, 18767715, 21270077, 21919545, 26274801, 30687363, 33781887, 43791335, 51145605, 56303145, 63810231, 78824403, 106350385, 131374005, 148890539, 153436815, 168909435, 191430693, 236473209, 319051155, 394122015, 446671617, 574292079, 744452695, 957153465, 1182366045, 1340014851, 2233358085, 2871460395, 4020044553, 6700074255, 20100222765]

約数ペア:

[(1, 20100222765), (3, 6700074255), (5, 4020044553), (7, 2871460395), (9, 2233358085), (15, 1340014851), (17, 1182366045), (21, 957153465), (27, 744452695), (35, 574292079), (45, 446671617), (51, 394122015), (63, 319051155), (85, 236473209), (105, 191430693), (119, 168909435), (131, 153436815), (135, 148890539), (153, 131374005), (189, 106350385), (255, 78824403), (315, 63810231), (357, 56303145), (393, 51145605), (459, 43791335), (595, 33781887), (655, 30687363), (765, 26274801), (917, 21919545), (945, 21270077), (1071, 18767715), (1179, 17048535), (1785, 11260629), (1965, 10229121), (2227, 9025695), (2295, 8758267), (2751, 7306515), (3213, 6255905), (3537, 5682845), (4585, 4383909), (5355, 3753543), (5895, 3409707), (6681, 3008565), (8253, 2435505), (9551, 2104515), (11135, 1805139), (13755, 1461303), (15589, 1289385), (16065, 1251181), (17685, 1136569), (20043, 1002855), (24759, 811835), (28653, 701505), (33405, 601713), (41265, 487101), (46767, 429795), (47755, 420903), (60129, 334285), (66857, 300645), (77945, 257877), (85959, 233835), (100215, 200571), (123795, 162367), (140301, 143265)]