20204505

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7877}}^1$

素因数の和:7910

約数の個数: 32

約数和(自身を含む): 37814400

約数和(自身を除く): 17609895

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 7877, 23631, 39385, 70893, 118155, 149663, 212679, 354465, 448989, 748315, 1063395, 1346967, 2244945, 4040901, 6734835, 20204505]

約数ペア:

[(1, 20204505), (3, 6734835), (5, 4040901), (9, 2244945), (15, 1346967), (19, 1063395), (27, 748315), (45, 448989), (57, 354465), (95, 212679), (135, 149663), (171, 118155), (285, 70893), (513, 39385), (855, 23631), (2565, 7877)]