78866515

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 124185600

約数和(自身を除く): 45319085

約数列:

[1, 5, 7, 13, 29, 35, 43, 65, 91, 139, 145, 203, 215, 301, 377, 455, 559, 695, 973, 1015, 1247, 1505, 1807, 1885, 2639, 2795, 3913, 4031, 4865, 5977, 6235, 8729, 9035, 12649, 13195, 16211, 19565, 20155, 28217, 29885, 41839, 43645, 52403, 63245, 77701, 81055, 113477, 141085, 173333, 209195, 262015, 366821, 388505, 543907, 567385, 866665, 1213331, 1834105, 2253329, 2719535, 6066655, 11266645, 15773303, 78866515]

約数ペア:

[(1, 78866515), (5, 15773303), (7, 11266645), (13, 6066655), (29, 2719535), (35, 2253329), (43, 1834105), (65, 1213331), (91, 866665), (139, 567385), (145, 543907), (203, 388505), (215, 366821), (301, 262015), (377, 209195), (455, 173333), (559, 141085), (695, 113477), (973, 81055), (1015, 77701), (1247, 63245), (1505, 52403), (1807, 43645), (1885, 41839), (2639, 29885), (2795, 28217), (3913, 20155), (4031, 19565), (4865, 16211), (5977, 13195), (6235, 12649), (8729, 9035)]