68750721

素因数分解:

$3^3\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 118048000

約数和(自身を除く): 49297279

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 61, 117, 169, 171, 183, 247, 351, 507, 513, 549, 741, 793, 1159, 1521, 1647, 2197, 2223, 2379, 3211, 3477, 4563, 6591, 6669, 7137, 9633, 10309, 10431, 15067, 19773, 21411, 28899, 30927, 31293, 41743, 45201, 59319, 86697, 92781, 125229, 134017, 135603, 195871, 278343, 375687, 402051, 406809, 587613, 1127061, 1206153, 1762839, 2546323, 3618459, 5288517, 7638969, 22916907, 68750721]

約数ペア:

[(1, 68750721), (3, 22916907), (9, 7638969), (13, 5288517), (19, 3618459), (27, 2546323), (39, 1762839), (57, 1206153), (61, 1127061), (117, 587613), (169, 406809), (171, 402051), (183, 375687), (247, 278343), (351, 195871), (507, 135603), (513, 134017), (549, 125229), (741, 92781), (793, 86697), (1159, 59319), (1521, 45201), (1647, 41743), (2197, 31293), (2223, 30927), (2379, 28899), (3211, 21411), (3477, 19773), (4563, 15067), (6591, 10431), (6669, 10309), (7137, 9633)]