20207536

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 40854528

約数和(自身を除く): 20646992

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 131, 248, 262, 311, 496, 524, 622, 1048, 1244, 2096, 2488, 4061, 4976, 8122, 9641, 16244, 19282, 32488, 38564, 40741, 64976, 77128, 81482, 154256, 162964, 325928, 651856, 1262971, 2525942, 5051884, 10103768, 20207536]

約数ペア:

[(1, 20207536), (2, 10103768), (4, 5051884), (8, 2525942), (16, 1262971), (31, 651856), (62, 325928), (124, 162964), (131, 154256), (248, 81482), (262, 77128), (311, 64976), (496, 40741), (524, 38564), (622, 32488), (1048, 19282), (1244, 16244), (2096, 9641), (2488, 8122), (4061, 4976)]