20806685820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3124127}}^1$

素因数の和:3124179

約数の個数: 72

約数和(自身を含む): 64819407744

約数和(自身を除く): 44012721924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 6660, 3124127, 6248254, 9372381, 12496508, 15620635, 18744762, 28117143, 31241270, 37489524, 46861905, 56234286, 62482540, 93723810, 112468572, 115592699, 140585715, 187447620, 231185398, 281171430, 346778097, 462370796, 562342860, 577963495, 693556194, 1040334291, 1155926990, 1387112388, 1733890485, 2080668582, 2311853980, 3467780970, 4161337164, 5201671455, 6935561940, 10403342910, 20806685820]

約数ペア:

[(1, 20806685820), (2, 10403342910), (3, 6935561940), (4, 5201671455), (5, 4161337164), (6, 3467780970), (9, 2311853980), (10, 2080668582), (12, 1733890485), (15, 1387112388), (18, 1155926990), (20, 1040334291), (30, 693556194), (36, 577963495), (37, 562342860), (45, 462370796), (60, 346778097), (74, 281171430), (90, 231185398), (111, 187447620), (148, 140585715), (180, 115592699), (185, 112468572), (222, 93723810), (333, 62482540), (370, 56234286), (444, 46861905), (555, 37489524), (666, 31241270), (740, 28117143), (1110, 18744762), (1332, 15620635), (1665, 12496508), (2220, 9372381), (3330, 6248254), (6660, 3124127)]