19542860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{251}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 43817760

約数和(自身を除く): 24274900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 229, 251, 340, 458, 502, 916, 1004, 1145, 1255, 2290, 2510, 3893, 4267, 4580, 5020, 7786, 8534, 15572, 17068, 19465, 21335, 38930, 42670, 57479, 77860, 85340, 114958, 229916, 287395, 574790, 977143, 1149580, 1954286, 3908572, 4885715, 9771430, 19542860]

約数ペア:

[(1, 19542860), (2, 9771430), (4, 4885715), (5, 3908572), (10, 1954286), (17, 1149580), (20, 977143), (34, 574790), (68, 287395), (85, 229916), (170, 114958), (229, 85340), (251, 77860), (340, 57479), (458, 42670), (502, 38930), (916, 21335), (1004, 19465), (1145, 17068), (1255, 15572), (2290, 8534), (2510, 7786), (3893, 5020), (4267, 4580)]