19630549640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{250007}}^1$

素因数の和:250182

約数の個数: 64

約数和(自身を含む): 47881532160

約数和(自身を除く): 28250982520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 520, 604, 755, 1208, 1510, 1963, 3020, 3926, 6040, 7852, 9815, 15704, 19630, 39260, 78520, 250007, 500014, 1000028, 1250035, 2000056, 2500070, 3250091, 5000140, 6500182, 10000280, 13000364, 16250455, 26000728, 32500910, 37751057, 65001820, 75502114, 130003640, 151004228, 188755285, 302008456, 377510570, 490763741, 755021140, 981527482, 1510042280, 1963054964, 2453818705, 3926109928, 4907637410, 9815274820, 19630549640]

約数ペア:

[(1, 19630549640), (2, 9815274820), (4, 4907637410), (5, 3926109928), (8, 2453818705), (10, 1963054964), (13, 1510042280), (20, 981527482), (26, 755021140), (40, 490763741), (52, 377510570), (65, 302008456), (104, 188755285), (130, 151004228), (151, 130003640), (260, 75502114), (302, 65001820), (520, 37751057), (604, 32500910), (755, 26000728), (1208, 16250455), (1510, 13000364), (1963, 10000280), (3020, 6500182), (3926, 5000140), (6040, 3250091), (7852, 2500070), (9815, 2000056), (15704, 1250035), (19630, 1000028), (39260, 500014), (78520, 250007)]