20197552

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:385

約数の個数: 40

約数和(自身を含む): 40372416

約数和(自身を除く): 20174864

約数列:

[1, 2, 4, 8, 16, 67, 83, 134, 166, 227, 268, 332, 454, 536, 664, 908, 1072, 1328, 1816, 3632, 5561, 11122, 15209, 18841, 22244, 30418, 37682, 44488, 60836, 75364, 88976, 121672, 150728, 243344, 301456, 1262347, 2524694, 5049388, 10098776, 20197552]

約数ペア:

[(1, 20197552), (2, 10098776), (4, 5049388), (8, 2524694), (16, 1262347), (67, 301456), (83, 243344), (134, 150728), (166, 121672), (227, 88976), (268, 75364), (332, 60836), (454, 44488), (536, 37682), (664, 30418), (908, 22244), (1072, 18841), (1328, 15209), (1816, 11122), (3632, 5561)]