20317994880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{63367}}^1$

素因数の和:63556

約数の個数: 128

約数和(自身を含む): 65152442880

約数和(自身を除く): 44834448000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 167, 192, 240, 320, 334, 384, 480, 501, 640, 668, 835, 960, 1002, 1336, 1670, 1920, 2004, 2505, 2672, 3340, 4008, 5010, 5344, 6680, 8016, 10020, 10688, 13360, 16032, 20040, 21376, 26720, 32064, 40080, 53440, 63367, 64128, 80160, 106880, 126734, 160320, 190101, 253468, 316835, 320640, 380202, 506936, 633670, 760404, 950505, 1013872, 1267340, 1520808, 1901010, 2027744, 2534680, 3041616, 3802020, 4055488, 5069360, 6083232, 7604040, 8110976, 10138720, 10582289, 12166464, 15208080, 20277440, 21164578, 24332928, 30416160, 31746867, 40554880, 42329156, 52911445, 60832320, 63493734, 84658312, 105822890, 121664640, 126987468, 158734335, 169316624, 211645780, 253974936, 317468670, 338633248, 423291560, 507949872, 634937340, 677266496, 846583120, 1015899744, 1269874680, 1354532992, 1693166240, 2031799488, 2539749360, 3386332480, 4063598976, 5079498720, 6772664960, 10158997440, 20317994880]

約数ペア:

[(1, 20317994880), (2, 10158997440), (3, 6772664960), (4, 5079498720), (5, 4063598976), (6, 3386332480), (8, 2539749360), (10, 2031799488), (12, 1693166240), (15, 1354532992), (16, 1269874680), (20, 1015899744), (24, 846583120), (30, 677266496), (32, 634937340), (40, 507949872), (48, 423291560), (60, 338633248), (64, 317468670), (80, 253974936), (96, 211645780), (120, 169316624), (128, 158734335), (160, 126987468), (167, 121664640), (192, 105822890), (240, 84658312), (320, 63493734), (334, 60832320), (384, 52911445), (480, 42329156), (501, 40554880), (640, 31746867), (668, 30416160), (835, 24332928), (960, 21164578), (1002, 20277440), (1336, 15208080), (1670, 12166464), (1920, 10582289), (2004, 10138720), (2505, 8110976), (2672, 7604040), (3340, 6083232), (4008, 5069360), (5010, 4055488), (5344, 3802020), (6680, 3041616), (8016, 2534680), (10020, 2027744), (10688, 1901010), (13360, 1520808), (16032, 1267340), (20040, 1013872), (21376, 950505), (26720, 760404), (32064, 633670), (40080, 506936), (53440, 380202), (63367, 320640), (64128, 316835), (80160, 253468), (106880, 190101), (126734, 160320)]