396619720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{202357}}^1$

素因数の和:202382

約数の個数: 48

約数和(自身を含む): 1038096540

約数和(自身を除く): 641476820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 202357, 404714, 809428, 1011785, 1416499, 1618856, 2023570, 2832998, 4047140, 5665996, 7082495, 8094280, 9915493, 11331992, 14164990, 19830986, 28329980, 39661972, 49577465, 56659960, 79323944, 99154930, 198309860, 396619720]

約数ペア:

[(1, 396619720), (2, 198309860), (4, 99154930), (5, 79323944), (7, 56659960), (8, 49577465), (10, 39661972), (14, 28329980), (20, 19830986), (28, 14164990), (35, 11331992), (40, 9915493), (49, 8094280), (56, 7082495), (70, 5665996), (98, 4047140), (140, 2832998), (196, 2023570), (245, 1618856), (280, 1416499), (392, 1011785), (490, 809428), (980, 404714), (1960, 202357)]