20178190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1741}}^1$

素因数の和:1828

約数の個数: 32

約数和(自身を含む): 38881440

約数和(自身を除く): 18703250

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 1741, 2318, 3482, 5795, 8705, 11590, 17410, 33079, 66158, 106201, 165395, 212402, 330790, 531005, 1062010, 2017819, 4035638, 10089095, 20178190]

約数ペア:

[(1, 20178190), (2, 10089095), (5, 4035638), (10, 2017819), (19, 1062010), (38, 531005), (61, 330790), (95, 212402), (122, 165395), (190, 106201), (305, 66158), (610, 33079), (1159, 17410), (1741, 11590), (2318, 8705), (3482, 5795)]