189801780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{451909}}^1$

素因数の和:451928

約数の個数: 48

約数和(自身を含む): 607367040

約数和(自身を除く): 417565260

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, 451909, 903818, 1355727, 1807636, 2259545, 2711454, 3163363, 4519090, 5422908, 6326726, 6778635, 9038180, 9490089, 12653452, 13557270, 15816815, 18980178, 27114540, 31633630, 37960356, 47450445, 63267260, 94900890, 189801780]

約数ペア:

[(1, 189801780), (2, 94900890), (3, 63267260), (4, 47450445), (5, 37960356), (6, 31633630), (7, 27114540), (10, 18980178), (12, 15816815), (14, 13557270), (15, 12653452), (20, 9490089), (21, 9038180), (28, 6778635), (30, 6326726), (35, 5422908), (42, 4519090), (60, 3163363), (70, 2711454), (84, 2259545), (105, 1807636), (140, 1355727), (210, 903818), (420, 451909)]