266688448

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{320539}}^1$

素因数の和:320564

約数の個数: 28

約数和(自身を含む): 569920120

約数和(自身を除く): 303231672

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 320539, 641078, 1282156, 2564312, 4167007, 5128624, 8334014, 10257248, 16668028, 20514496, 33336056, 66672112, 133344224, 266688448]

約数ペア:

[(1, 266688448), (2, 133344224), (4, 66672112), (8, 33336056), (13, 20514496), (16, 16668028), (26, 10257248), (32, 8334014), (52, 5128624), (64, 4167007), (104, 2564312), (208, 1282156), (416, 641078), (832, 320539)]