19395880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1307}}^1$

素因数の和:1378

約数の個数: 64

約数和(自身を含む): 50855040

約数和(自身を除く): 31459160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1307, 1484, 1855, 2120, 2614, 2968, 3710, 5228, 6535, 7420, 9149, 10456, 13070, 14840, 18298, 26140, 36596, 45745, 52280, 69271, 73192, 91490, 138542, 182980, 277084, 346355, 365960, 484897, 554168, 692710, 969794, 1385420, 1939588, 2424485, 2770840, 3879176, 4848970, 9697940, 19395880]

約数ペア:

[(1, 19395880), (2, 9697940), (4, 4848970), (5, 3879176), (7, 2770840), (8, 2424485), (10, 1939588), (14, 1385420), (20, 969794), (28, 692710), (35, 554168), (40, 484897), (53, 365960), (56, 346355), (70, 277084), (106, 182980), (140, 138542), (212, 91490), (265, 73192), (280, 69271), (371, 52280), (424, 45745), (530, 36596), (742, 26140), (1060, 18298), (1307, 14840), (1484, 13070), (1855, 10456), (2120, 9149), (2614, 7420), (2968, 6535), (3710, 5228)]