20502690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52571}}^1$

素因数の和:52594

約数の個数: 32

約数和(自身を含む): 52992576

約数和(自身を除く): 32489886

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52571, 105142, 157713, 262855, 315426, 525710, 683423, 788565, 1366846, 1577130, 2050269, 3417115, 4100538, 6834230, 10251345, 20502690]

約数ペア:

[(1, 20502690), (2, 10251345), (3, 6834230), (5, 4100538), (6, 3417115), (10, 2050269), (13, 1577130), (15, 1366846), (26, 788565), (30, 683423), (39, 525710), (65, 315426), (78, 262855), (130, 157713), (195, 105142), (390, 52571)]