81716565

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1523}}^1$

素因数の和:1618

約数の個数: 48

約数和(自身を含む): 154277568

約数和(自身を除く): 72561003

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 73, 105, 147, 219, 245, 365, 511, 735, 1095, 1523, 1533, 2555, 3577, 4569, 7615, 7665, 10661, 10731, 17885, 22845, 31983, 53305, 53655, 74627, 111179, 159915, 223881, 333537, 373135, 555895, 778253, 1119405, 1667685, 2334759, 3891265, 5447771, 11673795, 16343313, 27238855, 81716565]

約数ペア:

[(1, 81716565), (3, 27238855), (5, 16343313), (7, 11673795), (15, 5447771), (21, 3891265), (35, 2334759), (49, 1667685), (73, 1119405), (105, 778253), (147, 555895), (219, 373135), (245, 333537), (365, 223881), (511, 159915), (735, 111179), (1095, 74627), (1523, 53655), (1533, 53305), (2555, 31983), (3577, 22845), (4569, 17885), (7615, 10731), (7665, 10661)]