248499999

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:509

約数の個数: 72

約数和(自身を含む): 432222336

約数和(自身を除く): 183722337

約数列:

[1, 3, 9, 11, 17, 31, 33, 51, 93, 99, 121, 153, 187, 279, 341, 363, 433, 527, 561, 1023, 1089, 1299, 1581, 1683, 2057, 3069, 3751, 3897, 4743, 4763, 5797, 6171, 7361, 11253, 13423, 14289, 17391, 18513, 22083, 33759, 40269, 42867, 52173, 52393, 63767, 66249, 80971, 120807, 147653, 157179, 191301, 228191, 242913, 442959, 471537, 573903, 684573, 728739, 890681, 1328877, 1624183, 2053719, 2510101, 2672043, 4872549, 7530303, 8016129, 14617647, 22590909, 27611111, 82833333, 248499999]

約数ペア:

[(1, 248499999), (3, 82833333), (9, 27611111), (11, 22590909), (17, 14617647), (31, 8016129), (33, 7530303), (51, 4872549), (93, 2672043), (99, 2510101), (121, 2053719), (153, 1624183), (187, 1328877), (279, 890681), (341, 728739), (363, 684573), (433, 573903), (527, 471537), (561, 442959), (1023, 242913), (1089, 228191), (1299, 191301), (1581, 157179), (1683, 147653), (2057, 120807), (3069, 80971), (3751, 66249), (3897, 63767), (4743, 52393), (4763, 52173), (5797, 42867), (6171, 40269), (7361, 33759), (11253, 22083), (13423, 18513), (14289, 17391)]