646049860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{3191}}^1$

素因数の和:3444

約数の個数: 48

約数和(自身を含む): 1389975552

約数和(自身を除く): 743925692

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 191, 212, 265, 382, 530, 764, 955, 1060, 1910, 3191, 3820, 6382, 10123, 12764, 15955, 20246, 31910, 40492, 50615, 63820, 101230, 169123, 202460, 338246, 609481, 676492, 845615, 1218962, 1691230, 2437924, 3047405, 3382460, 6094810, 12189620, 32302493, 64604986, 129209972, 161512465, 323024930, 646049860]

約数ペア:

[(1, 646049860), (2, 323024930), (4, 161512465), (5, 129209972), (10, 64604986), (20, 32302493), (53, 12189620), (106, 6094810), (191, 3382460), (212, 3047405), (265, 2437924), (382, 1691230), (530, 1218962), (764, 845615), (955, 676492), (1060, 609481), (1910, 338246), (3191, 202460), (3820, 169123), (6382, 101230), (10123, 63820), (12764, 50615), (15955, 40492), (20246, 31910)]