26709020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2389}}^1$

素因数の和:2454

約数の個数: 48

約数和(自身を含む): 61834080

約数和(自身を除く): 35125060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2389, 2795, 4778, 5590, 9556, 11180, 11945, 23890, 31057, 47780, 62114, 102727, 124228, 155285, 205454, 310570, 410908, 513635, 621140, 1027270, 1335451, 2054540, 2670902, 5341804, 6677255, 13354510, 26709020]

約数ペア:

[(1, 26709020), (2, 13354510), (4, 6677255), (5, 5341804), (10, 2670902), (13, 2054540), (20, 1335451), (26, 1027270), (43, 621140), (52, 513635), (65, 410908), (86, 310570), (130, 205454), (172, 155285), (215, 124228), (260, 102727), (430, 62114), (559, 47780), (860, 31057), (1118, 23890), (2236, 11945), (2389, 11180), (2795, 9556), (4778, 5590)]