129776860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1$

素因数の和:894

約数の個数: 48

約数和(自身を含む): 279562752

約数和(自身を除く): 149785892

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 191, 212, 265, 382, 530, 641, 764, 955, 1060, 1282, 1910, 2564, 3205, 3820, 6410, 10123, 12820, 20246, 33973, 40492, 50615, 67946, 101230, 122431, 135892, 169865, 202460, 244862, 339730, 489724, 612155, 679460, 1224310, 2448620, 6488843, 12977686, 25955372, 32444215, 64888430, 129776860]

約数ペア:

[(1, 129776860), (2, 64888430), (4, 32444215), (5, 25955372), (10, 12977686), (20, 6488843), (53, 2448620), (106, 1224310), (191, 679460), (212, 612155), (265, 489724), (382, 339730), (530, 244862), (641, 202460), (764, 169865), (955, 135892), (1060, 122431), (1282, 101230), (1910, 67946), (2564, 50615), (3205, 40492), (3820, 33973), (6410, 20246), (10123, 12820)]