20264452

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{967}}^1$

素因数の和:1028

約数の個数: 36

約数和(自身を含む): 39680256

約数和(自身を除く): 19415804

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 676, 806, 967, 1612, 1934, 3868, 5239, 10478, 12571, 20956, 25142, 29977, 50284, 59954, 119908, 163423, 326846, 389701, 653692, 779402, 1558804, 5066113, 10132226, 20264452]

約数ペア:

[(1, 20264452), (2, 10132226), (4, 5066113), (13, 1558804), (26, 779402), (31, 653692), (52, 389701), (62, 326846), (124, 163423), (169, 119908), (338, 59954), (403, 50284), (676, 29977), (806, 25142), (967, 20956), (1612, 12571), (1934, 10478), (3868, 5239)]