19520880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{499}}^1$

素因数の和:678

約数の個数: 80

約数和(自身を含む): 61008000

約数和(自身を除く): 41487120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 163, 240, 326, 489, 499, 652, 815, 978, 998, 1304, 1497, 1630, 1956, 1996, 2445, 2495, 2608, 2994, 3260, 3912, 3992, 4890, 4990, 5988, 6520, 7485, 7824, 7984, 9780, 9980, 11976, 13040, 14970, 19560, 19960, 23952, 29940, 39120, 39920, 59880, 81337, 119760, 162674, 244011, 325348, 406685, 488022, 650696, 813370, 976044, 1220055, 1301392, 1626740, 1952088, 2440110, 3253480, 3904176, 4880220, 6506960, 9760440, 19520880]

約数ペア:

[(1, 19520880), (2, 9760440), (3, 6506960), (4, 4880220), (5, 3904176), (6, 3253480), (8, 2440110), (10, 1952088), (12, 1626740), (15, 1301392), (16, 1220055), (20, 976044), (24, 813370), (30, 650696), (40, 488022), (48, 406685), (60, 325348), (80, 244011), (120, 162674), (163, 119760), (240, 81337), (326, 59880), (489, 39920), (499, 39120), (652, 29940), (815, 23952), (978, 19960), (998, 19560), (1304, 14970), (1497, 13040), (1630, 11976), (1956, 9980), (1996, 9780), (2445, 7984), (2495, 7824), (2608, 7485), (2994, 6520), (3260, 5988), (3912, 4990), (3992, 4890)]