20368395

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 48

約数和(自身を含む): 37654560

約数和(自身を除く): 17286165

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 157, 279, 465, 471, 785, 837, 961, 1395, 1413, 2355, 2883, 4185, 4239, 4805, 4867, 7065, 8649, 14415, 14601, 21195, 24335, 25947, 43245, 43803, 73005, 129735, 131409, 150877, 219015, 452631, 657045, 754385, 1357893, 2263155, 4073679, 6789465, 20368395]

約数ペア:

[(1, 20368395), (3, 6789465), (5, 4073679), (9, 2263155), (15, 1357893), (27, 754385), (31, 657045), (45, 452631), (93, 219015), (135, 150877), (155, 131409), (157, 129735), (279, 73005), (465, 43803), (471, 43245), (785, 25947), (837, 24335), (961, 21195), (1395, 14601), (1413, 14415), (2355, 8649), (2883, 7065), (4185, 4867), (4239, 4805)]