20810284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 21283796

約数列:

[1, 2, 4, 11, 22, 29, 44, 47, 58, 94, 116, 188, 319, 347, 517, 638, 694, 1034, 1276, 1363, 1388, 2068, 2726, 3817, 5452, 7634, 10063, 14993, 15268, 16309, 20126, 29986, 32618, 40252, 59972, 65236, 110693, 179399, 221386, 358798, 442772, 472961, 717596, 945922, 1891844, 5202571, 10405142, 20810284]

約数ペア:

[(1, 20810284), (2, 10405142), (4, 5202571), (11, 1891844), (22, 945922), (29, 717596), (44, 472961), (47, 442772), (58, 358798), (94, 221386), (116, 179399), (188, 110693), (319, 65236), (347, 59972), (517, 40252), (638, 32618), (694, 29986), (1034, 20126), (1276, 16309), (1363, 15268), (1388, 14993), (2068, 10063), (2726, 7634), (3817, 5452)]