420760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 966960

約数和(自身を除く): 546200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 157, 268, 314, 335, 536, 628, 670, 785, 1256, 1340, 1570, 2680, 3140, 6280, 10519, 21038, 42076, 52595, 84152, 105190, 210380, 420760]

約数ペア:

[(1, 420760), (2, 210380), (4, 105190), (5, 84152), (8, 52595), (10, 42076), (20, 21038), (40, 10519), (67, 6280), (134, 3140), (157, 2680), (268, 1570), (314, 1340), (335, 1256), (536, 785), (628, 670)]