72248820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{172021}}^1$

素因数の和:172040

約数の個数: 48

約数和(自身を含む): 231197568

約数和(自身を除く): 158948748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 172021, 344042, 516063, 688084, 860105, 1032126, 1204147, 1720210, 2064252, 2408294, 2580315, 3440420, 3612441, 4816588, 5160630, 6020735, 7224882, 10321260, 12041470, 14449764, 18062205, 24082940, 36124410, 72248820]

約数ペア:

[(1, 72248820), (2, 36124410), (3, 24082940), (4, 18062205), (5, 14449764), (6, 12041470), (7, 10321260), (10, 7224882), (12, 6020735), (14, 5160630), (15, 4816588), (20, 3612441), (21, 3440420), (28, 2580315), (30, 2408294), (35, 2064252), (42, 1720210), (60, 1204147), (70, 1032126), (84, 860105), (105, 688084), (140, 516063), (210, 344042), (420, 172021)]