51680000

素因数分解:

$2^8\times 5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:72

約数の個数: 180

約数和(自身を含む): 143672760

約数和(自身を除く): 91992760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 32, 34, 38, 40, 50, 64, 68, 76, 80, 85, 95, 100, 125, 128, 136, 152, 160, 170, 190, 200, 250, 256, 272, 304, 320, 323, 340, 380, 400, 425, 475, 500, 544, 608, 625, 640, 646, 680, 760, 800, 850, 950, 1000, 1088, 1216, 1250, 1280, 1292, 1360, 1520, 1600, 1615, 1700, 1900, 2000, 2125, 2176, 2375, 2432, 2500, 2584, 2720, 3040, 3200, 3230, 3400, 3800, 4000, 4250, 4352, 4750, 4864, 5000, 5168, 5440, 6080, 6400, 6460, 6800, 7600, 8000, 8075, 8500, 9500, 10000, 10336, 10625, 10880, 11875, 12160, 12920, 13600, 15200, 16000, 16150, 17000, 19000, 20000, 20672, 21250, 21760, 23750, 24320, 25840, 27200, 30400, 32000, 32300, 34000, 38000, 40000, 40375, 41344, 42500, 47500, 51680, 54400, 60800, 64600, 68000, 76000, 80000, 80750, 82688, 85000, 95000, 103360, 108800, 121600, 129200, 136000, 152000, 160000, 161500, 170000, 190000, 201875, 206720, 258400, 272000, 304000, 323000, 340000, 380000, 403750, 413440, 516800, 544000, 608000, 646000, 680000, 760000, 807500, 1033600, 1292000, 1360000, 1520000, 1615000, 2067200, 2584000, 2720000, 3040000, 3230000, 5168000, 6460000, 10336000, 12920000, 25840000, 51680000]

約数ペア:

[(1, 51680000), (2, 25840000), (4, 12920000), (5, 10336000), (8, 6460000), (10, 5168000), (16, 3230000), (17, 3040000), (19, 2720000), (20, 2584000), (25, 2067200), (32, 1615000), (34, 1520000), (38, 1360000), (40, 1292000), (50, 1033600), (64, 807500), (68, 760000), (76, 680000), (80, 646000), (85, 608000), (95, 544000), (100, 516800), (125, 413440), (128, 403750), (136, 380000), (152, 340000), (160, 323000), (170, 304000), (190, 272000), (200, 258400), (250, 206720), (256, 201875), (272, 190000), (304, 170000), (320, 161500), (323, 160000), (340, 152000), (380, 136000), (400, 129200), (425, 121600), (475, 108800), (500, 103360), (544, 95000), (608, 85000), (625, 82688), (640, 80750), (646, 80000), (680, 76000), (760, 68000), (800, 64600), (850, 60800), (950, 54400), (1000, 51680), (1088, 47500), (1216, 42500), (1250, 41344), (1280, 40375), (1292, 40000), (1360, 38000), (1520, 34000), (1600, 32300), (1615, 32000), (1700, 30400), (1900, 27200), (2000, 25840), (2125, 24320), (2176, 23750), (2375, 21760), (2432, 21250), (2500, 20672), (2584, 20000), (2720, 19000), (3040, 17000), (3200, 16150), (3230, 16000), (3400, 15200), (3800, 13600), (4000, 12920), (4250, 12160), (4352, 11875), (4750, 10880), (4864, 10625), (5000, 10336), (5168, 10000), (5440, 9500), (6080, 8500), (6400, 8075), (6460, 8000), (6800, 7600)]