20679960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3517}}^1$

素因数の和:3545

約数の個数: 96

約数和(自身を含む): 72189360

約数和(自身を除く): 51509400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3517, 5880, 7034, 10551, 14068, 17585, 21102, 24619, 28136, 35170, 42204, 49238, 52755, 70340, 73857, 84408, 98476, 105510, 123095, 140680, 147714, 172333, 196952, 211020, 246190, 295428, 344666, 369285, 422040, 492380, 516999, 590856, 689332, 738570, 861665, 984760, 1033998, 1378664, 1477140, 1723330, 2067996, 2584995, 2954280, 3446660, 4135992, 5169990, 6893320, 10339980, 20679960]

約数ペア:

[(1, 20679960), (2, 10339980), (3, 6893320), (4, 5169990), (5, 4135992), (6, 3446660), (7, 2954280), (8, 2584995), (10, 2067996), (12, 1723330), (14, 1477140), (15, 1378664), (20, 1033998), (21, 984760), (24, 861665), (28, 738570), (30, 689332), (35, 590856), (40, 516999), (42, 492380), (49, 422040), (56, 369285), (60, 344666), (70, 295428), (84, 246190), (98, 211020), (105, 196952), (120, 172333), (140, 147714), (147, 140680), (168, 123095), (196, 105510), (210, 98476), (245, 84408), (280, 73857), (294, 70340), (392, 52755), (420, 49238), (490, 42204), (588, 35170), (735, 28136), (840, 24619), (980, 21102), (1176, 17585), (1470, 14068), (1960, 10551), (2940, 7034), (3517, 5880)]