199450280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{673}}^1$

素因数の和:954

約数の個数: 64

約数和(自身を含む): 465868800

約数和(自身を除く): 266418520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 239, 248, 310, 478, 620, 673, 956, 1195, 1240, 1346, 1912, 2390, 2692, 3365, 4780, 5384, 6730, 7409, 9560, 13460, 14818, 20863, 26920, 29636, 37045, 41726, 59272, 74090, 83452, 104315, 148180, 160847, 166904, 208630, 296360, 321694, 417260, 643388, 804235, 834520, 1286776, 1608470, 3216940, 4986257, 6433880, 9972514, 19945028, 24931285, 39890056, 49862570, 99725140, 199450280]

約数ペア:

[(1, 199450280), (2, 99725140), (4, 49862570), (5, 39890056), (8, 24931285), (10, 19945028), (20, 9972514), (31, 6433880), (40, 4986257), (62, 3216940), (124, 1608470), (155, 1286776), (239, 834520), (248, 804235), (310, 643388), (478, 417260), (620, 321694), (673, 296360), (956, 208630), (1195, 166904), (1240, 160847), (1346, 148180), (1912, 104315), (2390, 83452), (2692, 74090), (3365, 59272), (4780, 41726), (5384, 37045), (6730, 29636), (7409, 26920), (9560, 20863), (13460, 14818)]