331388980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{2789}}^1$

素因数の和:3268

約数の個数: 48

約数和(自身を含む): 751358160

約数和(自身を除く): 419969180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 457, 914, 1828, 2285, 2789, 4570, 5578, 5941, 9140, 11156, 11882, 13945, 23764, 27890, 29705, 36257, 55780, 59410, 72514, 118820, 145028, 181285, 362570, 725140, 1274573, 2549146, 5098292, 6372865, 12745730, 16569449, 25491460, 33138898, 66277796, 82847245, 165694490, 331388980]

約数ペア:

[(1, 331388980), (2, 165694490), (4, 82847245), (5, 66277796), (10, 33138898), (13, 25491460), (20, 16569449), (26, 12745730), (52, 6372865), (65, 5098292), (130, 2549146), (260, 1274573), (457, 725140), (914, 362570), (1828, 181285), (2285, 145028), (2789, 118820), (4570, 72514), (5578, 59410), (5941, 55780), (9140, 36257), (11156, 29705), (11882, 27890), (13945, 23764)]