43971980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3191}}^1$

素因数の和:3266

約数の個数: 48

約数和(自身を含む): 101352384

約数和(自身を除く): 57380404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3191, 3445, 6382, 6890, 12764, 13780, 15955, 31910, 41483, 63820, 82966, 165932, 169123, 207415, 338246, 414830, 676492, 829660, 845615, 1691230, 2198599, 3382460, 4397198, 8794396, 10992995, 21985990, 43971980]

約数ペア:

[(1, 43971980), (2, 21985990), (4, 10992995), (5, 8794396), (10, 4397198), (13, 3382460), (20, 2198599), (26, 1691230), (52, 845615), (53, 829660), (65, 676492), (106, 414830), (130, 338246), (212, 207415), (260, 169123), (265, 165932), (530, 82966), (689, 63820), (1060, 41483), (1378, 31910), (2756, 15955), (3191, 13780), (3445, 12764), (6382, 6890)]