2178701720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1\times {\mathrm{5179}}^1$

素因数の和:6012

約数の個数: 64

約数和(自身を含む): 5286708000

約数和(自身を除く): 3108006280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 809, 1618, 3236, 4045, 5179, 6472, 8090, 10358, 10517, 16180, 20716, 21034, 25895, 32360, 41432, 42068, 51790, 52585, 67327, 84136, 103580, 105170, 134654, 207160, 210340, 269308, 336635, 420680, 538616, 673270, 1346540, 2693080, 4189811, 8379622, 16759244, 20949055, 33518488, 41898110, 54467543, 83796220, 108935086, 167592440, 217870172, 272337715, 435740344, 544675430, 1089350860, 2178701720]

約数ペア:

[(1, 2178701720), (2, 1089350860), (4, 544675430), (5, 435740344), (8, 272337715), (10, 217870172), (13, 167592440), (20, 108935086), (26, 83796220), (40, 54467543), (52, 41898110), (65, 33518488), (104, 20949055), (130, 16759244), (260, 8379622), (520, 4189811), (809, 2693080), (1618, 1346540), (3236, 673270), (4045, 538616), (5179, 420680), (6472, 336635), (8090, 269308), (10358, 210340), (10517, 207160), (16180, 134654), (20716, 105170), (21034, 103580), (25895, 84136), (32360, 67327), (41432, 52585), (42068, 51790)]