18956020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 23621900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 127, 170, 254, 340, 439, 508, 635, 878, 1270, 1756, 2159, 2195, 2540, 4318, 4390, 7463, 8636, 8780, 10795, 14926, 21590, 29852, 37315, 43180, 55753, 74630, 111506, 149260, 223012, 278765, 557530, 947801, 1115060, 1895602, 3791204, 4739005, 9478010, 18956020]

約数ペア:

[(1, 18956020), (2, 9478010), (4, 4739005), (5, 3791204), (10, 1895602), (17, 1115060), (20, 947801), (34, 557530), (68, 278765), (85, 223012), (127, 149260), (170, 111506), (254, 74630), (340, 55753), (439, 43180), (508, 37315), (635, 29852), (878, 21590), (1270, 14926), (1756, 10795), (2159, 8780), (2195, 8636), (2540, 7463), (4318, 4390)]