77689600

素因数分解:

$2^8\times 5^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:286

約数の個数: 108

約数和(自身を含む): 196428400

約数和(自身を除く): 118738800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 64, 80, 100, 122, 128, 160, 199, 200, 244, 256, 305, 320, 398, 400, 488, 610, 640, 796, 800, 976, 995, 1220, 1280, 1525, 1592, 1600, 1952, 1990, 2440, 3050, 3184, 3200, 3904, 3980, 4880, 4975, 6100, 6368, 6400, 7808, 7960, 9760, 9950, 12139, 12200, 12736, 15616, 15920, 19520, 19900, 24278, 24400, 25472, 31840, 39040, 39800, 48556, 48800, 50944, 60695, 63680, 78080, 79600, 97112, 97600, 121390, 127360, 159200, 194224, 195200, 242780, 254720, 303475, 318400, 388448, 390400, 485560, 606950, 636800, 776896, 971120, 1213900, 1273600, 1553792, 1942240, 2427800, 3107584, 3884480, 4855600, 7768960, 9711200, 15537920, 19422400, 38844800, 77689600]

約数ペア:

[(1, 77689600), (2, 38844800), (4, 19422400), (5, 15537920), (8, 9711200), (10, 7768960), (16, 4855600), (20, 3884480), (25, 3107584), (32, 2427800), (40, 1942240), (50, 1553792), (61, 1273600), (64, 1213900), (80, 971120), (100, 776896), (122, 636800), (128, 606950), (160, 485560), (199, 390400), (200, 388448), (244, 318400), (256, 303475), (305, 254720), (320, 242780), (398, 195200), (400, 194224), (488, 159200), (610, 127360), (640, 121390), (796, 97600), (800, 97112), (976, 79600), (995, 78080), (1220, 63680), (1280, 60695), (1525, 50944), (1592, 48800), (1600, 48556), (1952, 39800), (1990, 39040), (2440, 31840), (3050, 25472), (3184, 24400), (3200, 24278), (3904, 19900), (3980, 19520), (4880, 15920), (4975, 15616), (6100, 12736), (6368, 12200), (6400, 12139), (7808, 9950), (7960, 9760)]