19488080

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:204

約数の個数: 80

約数和(自身を含む): 47568384

約数和(自身を除く): 28080304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 71, 73, 80, 94, 142, 146, 188, 235, 284, 292, 355, 365, 376, 470, 568, 584, 710, 730, 752, 940, 1136, 1168, 1420, 1460, 1880, 2840, 2920, 3337, 3431, 3760, 5183, 5680, 5840, 6674, 6862, 10366, 13348, 13724, 16685, 17155, 20732, 25915, 26696, 27448, 33370, 34310, 41464, 51830, 53392, 54896, 66740, 68620, 82928, 103660, 133480, 137240, 207320, 243601, 266960, 274480, 414640, 487202, 974404, 1218005, 1948808, 2436010, 3897616, 4872020, 9744040, 19488080]

約数ペア:

[(1, 19488080), (2, 9744040), (4, 4872020), (5, 3897616), (8, 2436010), (10, 1948808), (16, 1218005), (20, 974404), (40, 487202), (47, 414640), (71, 274480), (73, 266960), (80, 243601), (94, 207320), (142, 137240), (146, 133480), (188, 103660), (235, 82928), (284, 68620), (292, 66740), (355, 54896), (365, 53392), (376, 51830), (470, 41464), (568, 34310), (584, 33370), (710, 27448), (730, 26696), (752, 25915), (940, 20732), (1136, 17155), (1168, 16685), (1420, 13724), (1460, 13348), (1880, 10366), (2840, 6862), (2920, 6674), (3337, 5840), (3431, 5680), (3760, 5183)]