28989884

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1543}}^1$

素因数の和:1626

約数の個数: 48

約数和(自身を含む): 64329216

約数和(自身を除く): 35339332

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 61, 77, 122, 154, 244, 308, 427, 671, 854, 1342, 1543, 1708, 2684, 3086, 4697, 6172, 9394, 10801, 16973, 18788, 21602, 33946, 43204, 67892, 94123, 118811, 188246, 237622, 376492, 475244, 658861, 1035353, 1317722, 2070706, 2635444, 4141412, 7247471, 14494942, 28989884]

約数ペア:

[(1, 28989884), (2, 14494942), (4, 7247471), (7, 4141412), (11, 2635444), (14, 2070706), (22, 1317722), (28, 1035353), (44, 658861), (61, 475244), (77, 376492), (122, 237622), (154, 188246), (244, 118811), (308, 94123), (427, 67892), (671, 43204), (854, 33946), (1342, 21602), (1543, 18788), (1708, 16973), (2684, 10801), (3086, 9394), (4697, 6172)]