78407000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:538

約数の個数: 128

約数和(自身を含む): 219248640

約数和(自身を除く): 140841640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 92, 100, 115, 125, 140, 161, 175, 184, 200, 230, 250, 280, 322, 350, 460, 487, 500, 575, 644, 700, 805, 875, 920, 974, 1000, 1150, 1288, 1400, 1610, 1750, 1948, 2300, 2435, 2875, 3220, 3409, 3500, 3896, 4025, 4600, 4870, 5750, 6440, 6818, 7000, 8050, 9740, 11201, 11500, 12175, 13636, 16100, 17045, 19480, 20125, 22402, 23000, 24350, 27272, 32200, 34090, 40250, 44804, 48700, 56005, 60875, 68180, 78407, 80500, 85225, 89608, 97400, 112010, 121750, 136360, 156814, 161000, 170450, 224020, 243500, 280025, 313628, 340900, 392035, 426125, 448040, 487000, 560050, 627256, 681800, 784070, 852250, 1120100, 1400125, 1568140, 1704500, 1960175, 2240200, 2800250, 3136280, 3409000, 3920350, 5600500, 7840700, 9800875, 11201000, 15681400, 19601750, 39203500, 78407000]

約数ペア:

[(1, 78407000), (2, 39203500), (4, 19601750), (5, 15681400), (7, 11201000), (8, 9800875), (10, 7840700), (14, 5600500), (20, 3920350), (23, 3409000), (25, 3136280), (28, 2800250), (35, 2240200), (40, 1960175), (46, 1704500), (50, 1568140), (56, 1400125), (70, 1120100), (92, 852250), (100, 784070), (115, 681800), (125, 627256), (140, 560050), (161, 487000), (175, 448040), (184, 426125), (200, 392035), (230, 340900), (250, 313628), (280, 280025), (322, 243500), (350, 224020), (460, 170450), (487, 161000), (500, 156814), (575, 136360), (644, 121750), (700, 112010), (805, 97400), (875, 89608), (920, 85225), (974, 80500), (1000, 78407), (1150, 68180), (1288, 60875), (1400, 56005), (1610, 48700), (1750, 44804), (1948, 40250), (2300, 34090), (2435, 32200), (2875, 27272), (3220, 24350), (3409, 23000), (3500, 22402), (3896, 20125), (4025, 19480), (4600, 17045), (4870, 16100), (5750, 13636), (6440, 12175), (6818, 11500), (7000, 11201), (8050, 9740)]