205940360

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{65171}}^1$

素因数の和:65261

約数の個数: 32

約数和(自身を含む): 469238400

約数和(自身を除く): 263298040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 65171, 130342, 260684, 325855, 521368, 651710, 1303420, 2606840, 5148509, 10297018, 20594036, 25742545, 41188072, 51485090, 102970180, 205940360]

約数ペア:

[(1, 205940360), (2, 102970180), (4, 51485090), (5, 41188072), (8, 25742545), (10, 20594036), (20, 10297018), (40, 5148509), (79, 2606840), (158, 1303420), (316, 651710), (395, 521368), (632, 325855), (790, 260684), (1580, 130342), (3160, 65171)]