8215191215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 13447987200

約数和(自身を除く): 5232795985

約数列:

[1, 5, 7, 11, 19, 35, 37, 55, 77, 95, 127, 133, 185, 209, 239, 259, 385, 407, 635, 665, 703, 889, 1045, 1195, 1295, 1397, 1463, 1673, 2035, 2413, 2629, 2849, 3515, 4445, 4541, 4699, 4921, 6985, 7315, 7733, 8365, 8843, 9779, 12065, 13145, 14245, 16891, 18403, 22705, 23495, 24605, 26543, 30353, 31787, 32893, 38665, 44215, 48895, 49951, 51689, 54131, 61901, 84455, 89281, 92015, 97273, 132715, 151765, 158935, 164465, 168017, 185801, 212471, 249755, 258445, 270655, 309505, 333883, 349657, 361823, 446405, 486365, 576707, 624967, 680911, 840085, 929005, 982091, 1062355, 1123061, 1176119, 1669415, 1748285, 1809115, 1848187, 2337181, 2883535, 3124835, 3404555, 4036949, 4910455, 5615305, 5880595, 6343777, 6874637, 7861427, 9240935, 11685905, 12353671, 12937309, 20184745, 21338159, 31718885, 34373185, 39307135, 44406439, 61768355, 64686545, 86475697, 106690795, 149367113, 222032195, 234719749, 432378485, 746835565, 1173598745, 1643038243, 8215191215]

約数ペア:

[(1, 8215191215), (5, 1643038243), (7, 1173598745), (11, 746835565), (19, 432378485), (35, 234719749), (37, 222032195), (55, 149367113), (77, 106690795), (95, 86475697), (127, 64686545), (133, 61768355), (185, 44406439), (209, 39307135), (239, 34373185), (259, 31718885), (385, 21338159), (407, 20184745), (635, 12937309), (665, 12353671), (703, 11685905), (889, 9240935), (1045, 7861427), (1195, 6874637), (1295, 6343777), (1397, 5880595), (1463, 5615305), (1673, 4910455), (2035, 4036949), (2413, 3404555), (2629, 3124835), (2849, 2883535), (3515, 2337181), (4445, 1848187), (4541, 1809115), (4699, 1748285), (4921, 1669415), (6985, 1176119), (7315, 1123061), (7733, 1062355), (8365, 982091), (8843, 929005), (9779, 840085), (12065, 680911), (13145, 624967), (14245, 576707), (16891, 486365), (18403, 446405), (22705, 361823), (23495, 349657), (24605, 333883), (26543, 309505), (30353, 270655), (31787, 258445), (32893, 249755), (38665, 212471), (44215, 185801), (48895, 168017), (49951, 164465), (51689, 158935), (54131, 151765), (61901, 132715), (84455, 97273), (89281, 92015)]