31991196545

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:607

約数の個数: 128

約数和(自身を含む): 50533908480

約数和(自身を除く): 18542711935

約数列:

[1, 5, 7, 11, 35, 43, 55, 61, 77, 79, 215, 301, 305, 385, 395, 401, 427, 473, 553, 671, 869, 1505, 2005, 2135, 2365, 2623, 2765, 2807, 3311, 3355, 3397, 4345, 4411, 4697, 4819, 6083, 13115, 14035, 16555, 16985, 17243, 18361, 22055, 23485, 23779, 24095, 24461, 28853, 30415, 30877, 31679, 33733, 37367, 53009, 86215, 91805, 118895, 120701, 122305, 144265, 154385, 158395, 168665, 171227, 186835, 189673, 201971, 207217, 221753, 261569, 265045, 269071, 348469, 371063, 603505, 856135, 948365, 1009855, 1036085, 1051823, 1108765, 1307845, 1327711, 1345355, 1362197, 1450519, 1742345, 1855315, 1883497, 1932419, 2279387, 2439283, 5259115, 6638555, 6810985, 7252595, 7362761, 9417485, 9535379, 9662095, 11396935, 11570053, 12196415, 13526933, 14984167, 15955709, 21256609, 36813805, 47676895, 57850265, 67634665, 74920835, 79778545, 80990371, 83094017, 104889169, 106283045, 148796263, 404951855, 415470085, 524445845, 581658119, 743981315, 914034187, 2908290595, 4570170935, 6398239309, 31991196545]

約数ペア:

[(1, 31991196545), (5, 6398239309), (7, 4570170935), (11, 2908290595), (35, 914034187), (43, 743981315), (55, 581658119), (61, 524445845), (77, 415470085), (79, 404951855), (215, 148796263), (301, 106283045), (305, 104889169), (385, 83094017), (395, 80990371), (401, 79778545), (427, 74920835), (473, 67634665), (553, 57850265), (671, 47676895), (869, 36813805), (1505, 21256609), (2005, 15955709), (2135, 14984167), (2365, 13526933), (2623, 12196415), (2765, 11570053), (2807, 11396935), (3311, 9662095), (3355, 9535379), (3397, 9417485), (4345, 7362761), (4411, 7252595), (4697, 6810985), (4819, 6638555), (6083, 5259115), (13115, 2439283), (14035, 2279387), (16555, 1932419), (16985, 1883497), (17243, 1855315), (18361, 1742345), (22055, 1450519), (23485, 1362197), (23779, 1345355), (24095, 1327711), (24461, 1307845), (28853, 1108765), (30415, 1051823), (30877, 1036085), (31679, 1009855), (33733, 948365), (37367, 856135), (53009, 603505), (86215, 371063), (91805, 348469), (118895, 269071), (120701, 265045), (122305, 261569), (144265, 221753), (154385, 207217), (158395, 201971), (168665, 189673), (171227, 186835)]