263331180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{208993}}^1$

素因数の和:209015

約数の個数: 72

約数和(自身を含む): 912885792

約数和(自身を除く): 649554612

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 208993, 417986, 626979, 835972, 1044965, 1253958, 1462951, 1880937, 2089930, 2507916, 2925902, 3134895, 3761874, 4179860, 4388853, 5851804, 6269790, 7314755, 7523748, 8777706, 9404685, 12539580, 13166559, 14629510, 17555412, 18809370, 21944265, 26333118, 29259020, 37618740, 43888530, 52666236, 65832795, 87777060, 131665590, 263331180]

約数ペア:

[(1, 263331180), (2, 131665590), (3, 87777060), (4, 65832795), (5, 52666236), (6, 43888530), (7, 37618740), (9, 29259020), (10, 26333118), (12, 21944265), (14, 18809370), (15, 17555412), (18, 14629510), (20, 13166559), (21, 12539580), (28, 9404685), (30, 8777706), (35, 7523748), (36, 7314755), (42, 6269790), (45, 5851804), (60, 4388853), (63, 4179860), (70, 3761874), (84, 3134895), (90, 2925902), (105, 2507916), (126, 2089930), (140, 1880937), (180, 1462951), (210, 1253958), (252, 1044965), (315, 835972), (420, 626979), (630, 417986), (1260, 208993)]