28641405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{769}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 49674240

約数和(自身を除く): 21032835

約数列:

[1, 3, 5, 13, 15, 39, 65, 191, 195, 573, 769, 955, 2307, 2483, 2865, 3845, 7449, 9997, 11535, 12415, 29991, 37245, 49985, 146879, 149955, 440637, 734395, 1909427, 2203185, 5728281, 9547135, 28641405]

約数ペア:

[(1, 28641405), (3, 9547135), (5, 5728281), (13, 2203185), (15, 1909427), (39, 734395), (65, 440637), (191, 149955), (195, 146879), (573, 49985), (769, 37245), (955, 29991), (2307, 12415), (2483, 11535), (2865, 9997), (3845, 7449)]