31075840

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:283

約数の個数: 80

約数和(自身を含む): 76111200

約数和(自身を除く): 45035360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 199, 244, 256, 305, 320, 398, 488, 512, 610, 640, 796, 976, 995, 1220, 1280, 1592, 1952, 1990, 2440, 2560, 3184, 3904, 3980, 4880, 6368, 7808, 7960, 9760, 12139, 12736, 15616, 15920, 19520, 24278, 25472, 31232, 31840, 39040, 48556, 50944, 60695, 63680, 78080, 97112, 101888, 121390, 127360, 156160, 194224, 242780, 254720, 388448, 485560, 509440, 776896, 971120, 1553792, 1942240, 3107584, 3884480, 6215168, 7768960, 15537920, 31075840]

約数ペア:

[(1, 31075840), (2, 15537920), (4, 7768960), (5, 6215168), (8, 3884480), (10, 3107584), (16, 1942240), (20, 1553792), (32, 971120), (40, 776896), (61, 509440), (64, 485560), (80, 388448), (122, 254720), (128, 242780), (160, 194224), (199, 156160), (244, 127360), (256, 121390), (305, 101888), (320, 97112), (398, 78080), (488, 63680), (512, 60695), (610, 50944), (640, 48556), (796, 39040), (976, 31840), (995, 31232), (1220, 25472), (1280, 24278), (1592, 19520), (1952, 15920), (1990, 15616), (2440, 12736), (2560, 12139), (3184, 9760), (3904, 7960), (3980, 7808), (4880, 6368)]