3971305880

素因数分解:

$2^3\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{77023}}^1$

素因数の和:78323

約数の個数: 32

約数和(自身を含む): 8942486400

約数和(自身を除く): 4971180520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1289, 2578, 5156, 6445, 10312, 12890, 25780, 51560, 77023, 154046, 308092, 385115, 616184, 770230, 1540460, 3080920, 99282647, 198565294, 397130588, 496413235, 794261176, 992826470, 1985652940, 3971305880]

約数ペア:

[(1, 3971305880), (2, 1985652940), (4, 992826470), (5, 794261176), (8, 496413235), (10, 397130588), (20, 198565294), (40, 99282647), (1289, 3080920), (2578, 1540460), (5156, 770230), (6445, 616184), (10312, 385115), (12890, 308092), (25780, 154046), (51560, 77023)]