278375960

素因数分解:

$2^3\times 5^1\times {\mathrm{2539}}^1\times {\mathrm{2741}}^1$

素因数の和:5291

約数の個数: 32

約数和(自身を含む): 626821200

約数和(自身を除く): 348445240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2539, 2741, 5078, 5482, 10156, 10964, 12695, 13705, 20312, 21928, 25390, 27410, 50780, 54820, 101560, 109640, 6959399, 13918798, 27837596, 34796995, 55675192, 69593990, 139187980, 278375960]

約数ペア:

[(1, 278375960), (2, 139187980), (4, 69593990), (5, 55675192), (8, 34796995), (10, 27837596), (20, 13918798), (40, 6959399), (2539, 109640), (2741, 101560), (5078, 54820), (5482, 50780), (10156, 27410), (10964, 25390), (12695, 21928), (13705, 20312)]