20189365545

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1\times {\mathrm{21379}}^1$

素因数の和:21945

約数の個数: 32

約数和(自身を含む): 32591329920

約数和(自身を除く): 12401964375

約数列:

[1, 3, 5, 15, 157, 401, 471, 785, 1203, 2005, 2355, 6015, 21379, 62957, 64137, 106895, 188871, 314785, 320685, 944355, 3356503, 8572979, 10069509, 16782515, 25718937, 42864895, 50347545, 128594685, 1345957703, 4037873109, 6729788515, 20189365545]

約数ペア:

[(1, 20189365545), (3, 6729788515), (5, 4037873109), (15, 1345957703), (157, 128594685), (401, 50347545), (471, 42864895), (785, 25718937), (1203, 16782515), (2005, 10069509), (2355, 8572979), (6015, 3356503), (21379, 944355), (62957, 320685), (64137, 314785), (106895, 188871)]