247788255

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{349}}^1$

素因数の和:712

約数の個数: 64

約数和(自身を含む): 468518400

約数和(自身を除く): 220730145

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 331, 349, 429, 715, 993, 1047, 1655, 1745, 2145, 3641, 3839, 4303, 4537, 4965, 5235, 10923, 11517, 12909, 13611, 18205, 19195, 21515, 22685, 47333, 49907, 54615, 57585, 64545, 68055, 115519, 141999, 149721, 236665, 249535, 346557, 577595, 709995, 748605, 1270709, 1501747, 1732785, 3812127, 4505241, 6353545, 7508735, 16519217, 19060635, 22526205, 49557651, 82596085, 247788255]

約数ペア:

[(1, 247788255), (3, 82596085), (5, 49557651), (11, 22526205), (13, 19060635), (15, 16519217), (33, 7508735), (39, 6353545), (55, 4505241), (65, 3812127), (143, 1732785), (165, 1501747), (195, 1270709), (331, 748605), (349, 709995), (429, 577595), (715, 346557), (993, 249535), (1047, 236665), (1655, 149721), (1745, 141999), (2145, 115519), (3641, 68055), (3839, 64545), (4303, 57585), (4537, 54615), (4965, 49907), (5235, 47333), (10923, 22685), (11517, 21515), (12909, 19195), (13611, 18205)]