28789540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110729}}^1$

素因数の和:110751

約数の個数: 24

約数和(自身を含む): 65109240

約数和(自身を除く): 36319700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110729, 221458, 442916, 553645, 1107290, 1439477, 2214580, 2878954, 5757908, 7197385, 14394770, 28789540]

約数ペア:

[(1, 28789540), (2, 14394770), (4, 7197385), (5, 5757908), (10, 2878954), (13, 2214580), (20, 1439477), (26, 1107290), (52, 553645), (65, 442916), (130, 221458), (260, 110729)]