20138992000

素因数分解:

$2^7\times 5^3\times {\mathrm{29}}^1\times {\mathrm{43403}}^1$

素因数の和:43461

約数の個数: 128

約数和(自身を含む): 51798333600

約数和(自身を除く): 31659341600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 64, 80, 100, 116, 125, 128, 145, 160, 200, 232, 250, 290, 320, 400, 464, 500, 580, 640, 725, 800, 928, 1000, 1160, 1450, 1600, 1856, 2000, 2320, 2900, 3200, 3625, 3712, 4000, 4640, 5800, 7250, 8000, 9280, 11600, 14500, 16000, 18560, 23200, 29000, 43403, 46400, 58000, 86806, 92800, 116000, 173612, 217015, 232000, 347224, 434030, 464000, 694448, 868060, 1085075, 1258687, 1388896, 1736120, 2170150, 2517374, 2777792, 3472240, 4340300, 5034748, 5425375, 5555584, 6293435, 6944480, 8680600, 10069496, 10850750, 12586870, 13888960, 17361200, 20138992, 21701500, 25173740, 27777920, 31467175, 34722400, 40277984, 43403000, 50347480, 62934350, 69444800, 80555968, 86806000, 100694960, 125868700, 138889600, 157335875, 161111936, 173612000, 201389920, 251737400, 314671750, 347224000, 402779840, 503474800, 629343500, 694448000, 805559680, 1006949600, 1258687000, 2013899200, 2517374000, 4027798400, 5034748000, 10069496000, 20138992000]

約数ペア:

[(1, 20138992000), (2, 10069496000), (4, 5034748000), (5, 4027798400), (8, 2517374000), (10, 2013899200), (16, 1258687000), (20, 1006949600), (25, 805559680), (29, 694448000), (32, 629343500), (40, 503474800), (50, 402779840), (58, 347224000), (64, 314671750), (80, 251737400), (100, 201389920), (116, 173612000), (125, 161111936), (128, 157335875), (145, 138889600), (160, 125868700), (200, 100694960), (232, 86806000), (250, 80555968), (290, 69444800), (320, 62934350), (400, 50347480), (464, 43403000), (500, 40277984), (580, 34722400), (640, 31467175), (725, 27777920), (800, 25173740), (928, 21701500), (1000, 20138992), (1160, 17361200), (1450, 13888960), (1600, 12586870), (1856, 10850750), (2000, 10069496), (2320, 8680600), (2900, 6944480), (3200, 6293435), (3625, 5555584), (3712, 5425375), (4000, 5034748), (4640, 4340300), (5800, 3472240), (7250, 2777792), (8000, 2517374), (9280, 2170150), (11600, 1736120), (14500, 1388896), (16000, 1258687), (18560, 1085075), (23200, 868060), (29000, 694448), (43403, 464000), (46400, 434030), (58000, 347224), (86806, 232000), (92800, 217015), (116000, 173612)]