31969960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:778

約数の個数: 64

約数和(自身を含む): 79289280

約数和(自身を除く): 47319320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 113, 220, 226, 440, 452, 565, 643, 904, 1130, 1243, 1286, 2260, 2486, 2572, 3215, 4520, 4972, 5144, 6215, 6430, 7073, 9944, 12430, 12860, 14146, 24860, 25720, 28292, 35365, 49720, 56584, 70730, 72659, 141460, 145318, 282920, 290636, 363295, 581272, 726590, 799249, 1453180, 1598498, 2906360, 3196996, 3996245, 6393992, 7992490, 15984980, 31969960]

約数ペア:

[(1, 31969960), (2, 15984980), (4, 7992490), (5, 6393992), (8, 3996245), (10, 3196996), (11, 2906360), (20, 1598498), (22, 1453180), (40, 799249), (44, 726590), (55, 581272), (88, 363295), (110, 290636), (113, 282920), (220, 145318), (226, 141460), (440, 72659), (452, 70730), (565, 56584), (643, 49720), (904, 35365), (1130, 28292), (1243, 25720), (1286, 24860), (2260, 14146), (2486, 12860), (2572, 12430), (3215, 9944), (4520, 7073), (4972, 6430), (5144, 6215)]