20759072

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:333

約数の個数: 48

約数和(自身を含む): 42661080

約数和(自身を除く): 21902008

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 89, 148, 178, 197, 296, 356, 394, 592, 712, 788, 1184, 1424, 1576, 2848, 3152, 3293, 6304, 6586, 7289, 13172, 14578, 17533, 26344, 29156, 35066, 52688, 58312, 70132, 105376, 116624, 140264, 233248, 280528, 561056, 648721, 1297442, 2594884, 5189768, 10379536, 20759072]

約数ペア:

[(1, 20759072), (2, 10379536), (4, 5189768), (8, 2594884), (16, 1297442), (32, 648721), (37, 561056), (74, 280528), (89, 233248), (148, 140264), (178, 116624), (197, 105376), (296, 70132), (356, 58312), (394, 52688), (592, 35066), (712, 29156), (788, 26344), (1184, 17533), (1424, 14578), (1576, 13172), (2848, 7289), (3152, 6586), (3293, 6304)]