256443904

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:307

約数の個数: 80

約数和(自身を含む): 537394176

約数和(自身を除く): 280950272

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 107, 124, 128, 151, 214, 248, 256, 302, 428, 496, 512, 604, 856, 992, 1208, 1712, 1984, 2416, 3317, 3424, 3968, 4681, 4832, 6634, 6848, 7936, 9362, 9664, 13268, 13696, 15872, 16157, 18724, 19328, 26536, 27392, 32314, 37448, 38656, 53072, 54784, 64628, 74896, 77312, 106144, 129256, 149792, 212288, 258512, 299584, 424576, 500867, 517024, 599168, 849152, 1001734, 1034048, 1198336, 1698304, 2003468, 2068096, 2396672, 4006936, 4136192, 8013872, 8272384, 16027744, 32055488, 64110976, 128221952, 256443904]

約数ペア:

[(1, 256443904), (2, 128221952), (4, 64110976), (8, 32055488), (16, 16027744), (31, 8272384), (32, 8013872), (62, 4136192), (64, 4006936), (107, 2396672), (124, 2068096), (128, 2003468), (151, 1698304), (214, 1198336), (248, 1034048), (256, 1001734), (302, 849152), (428, 599168), (496, 517024), (512, 500867), (604, 424576), (856, 299584), (992, 258512), (1208, 212288), (1712, 149792), (1984, 129256), (2416, 106144), (3317, 77312), (3424, 74896), (3968, 64628), (4681, 54784), (4832, 53072), (6634, 38656), (6848, 37448), (7936, 32314), (9362, 27392), (9664, 26536), (13268, 19328), (13696, 18724), (15872, 16157)]