688800190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{99971}}^1$

素因数の和:100044

約数の個数: 32

約数和(自身を含む): 1360418976

約数和(自身を除く): 671618786

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 6890, 99971, 199942, 499855, 999710, 1299623, 2599246, 5298463, 6498115, 10596926, 12996230, 26492315, 52984630, 68880019, 137760038, 344400095, 688800190]

約数ペア:

[(1, 688800190), (2, 344400095), (5, 137760038), (10, 68880019), (13, 52984630), (26, 26492315), (53, 12996230), (65, 10596926), (106, 6498115), (130, 5298463), (265, 2599246), (530, 1299623), (689, 999710), (1378, 499855), (3445, 199942), (6890, 99971)]