256316000

素因数分解:

$2^5\times 5^3\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:625

約数の個数: 96

約数和(自身を含む): 635675040

約数和(自身を除く): 379359040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 139, 160, 200, 250, 278, 400, 461, 500, 556, 695, 800, 922, 1000, 1112, 1390, 1844, 2000, 2224, 2305, 2780, 3475, 3688, 4000, 4448, 4610, 5560, 6950, 7376, 9220, 11120, 11525, 13900, 14752, 17375, 18440, 22240, 23050, 27800, 34750, 36880, 46100, 55600, 57625, 64079, 69500, 73760, 92200, 111200, 115250, 128158, 139000, 184400, 230500, 256316, 278000, 320395, 368800, 461000, 512632, 556000, 640790, 922000, 1025264, 1281580, 1601975, 1844000, 2050528, 2563160, 3203950, 5126320, 6407900, 8009875, 10252640, 12815800, 16019750, 25631600, 32039500, 51263200, 64079000, 128158000, 256316000]

約数ペア:

[(1, 256316000), (2, 128158000), (4, 64079000), (5, 51263200), (8, 32039500), (10, 25631600), (16, 16019750), (20, 12815800), (25, 10252640), (32, 8009875), (40, 6407900), (50, 5126320), (80, 3203950), (100, 2563160), (125, 2050528), (139, 1844000), (160, 1601975), (200, 1281580), (250, 1025264), (278, 922000), (400, 640790), (461, 556000), (500, 512632), (556, 461000), (695, 368800), (800, 320395), (922, 278000), (1000, 256316), (1112, 230500), (1390, 184400), (1844, 139000), (2000, 128158), (2224, 115250), (2305, 111200), (2780, 92200), (3475, 73760), (3688, 69500), (4000, 64079), (4448, 57625), (4610, 55600), (5560, 46100), (6950, 36880), (7376, 34750), (9220, 27800), (11120, 23050), (11525, 22240), (13900, 18440), (14752, 17375)]