219919840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{28051}}^1$

素因数の和:28080

約数の個数: 72

約数和(自身を含む): 604408392

約数和(自身を除く): 384488552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 28051, 56102, 112204, 140255, 196357, 224408, 280510, 392714, 448816, 561020, 785428, 897632, 981785, 1122040, 1374499, 1570856, 1963570, 2244080, 2748998, 3141712, 3927140, 4488160, 5497996, 6283424, 6872495, 7854280, 10995992, 13744990, 15708560, 21991984, 27489980, 31417120, 43983968, 54979960, 109959920, 219919840]

約数ペア:

[(1, 219919840), (2, 109959920), (4, 54979960), (5, 43983968), (7, 31417120), (8, 27489980), (10, 21991984), (14, 15708560), (16, 13744990), (20, 10995992), (28, 7854280), (32, 6872495), (35, 6283424), (40, 5497996), (49, 4488160), (56, 3927140), (70, 3141712), (80, 2748998), (98, 2244080), (112, 1963570), (140, 1570856), (160, 1374499), (196, 1122040), (224, 981785), (245, 897632), (280, 785428), (392, 561020), (490, 448816), (560, 392714), (784, 280510), (980, 224408), (1120, 196357), (1568, 140255), (1960, 112204), (3920, 56102), (7840, 28051)]