81429640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{24527}}^1$

素因数の和:24621

約数の個数: 32

約数和(自身を含む): 185431680

約数和(自身を除く): 104002040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 24527, 49054, 98108, 122635, 196216, 245270, 490540, 981080, 2035741, 4071482, 8142964, 10178705, 16285928, 20357410, 40714820, 81429640]

約数ペア:

[(1, 81429640), (2, 40714820), (4, 20357410), (5, 16285928), (8, 10178705), (10, 8142964), (20, 4071482), (40, 2035741), (83, 981080), (166, 490540), (332, 245270), (415, 196216), (664, 122635), (830, 98108), (1660, 49054), (3320, 24527)]