20545630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{349}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 43898400

約数和(自身を除く): 23352770

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 349, 406, 698, 841, 1015, 1682, 1745, 2030, 2443, 3490, 4205, 4886, 5887, 8410, 10121, 11774, 12215, 20242, 24430, 29435, 50605, 58870, 70847, 101210, 141694, 293509, 354235, 587018, 708470, 1467545, 2054563, 2935090, 4109126, 10272815, 20545630]

約数ペア:

[(1, 20545630), (2, 10272815), (5, 4109126), (7, 2935090), (10, 2054563), (14, 1467545), (29, 708470), (35, 587018), (58, 354235), (70, 293509), (145, 141694), (203, 101210), (290, 70847), (349, 58870), (406, 50605), (698, 29435), (841, 24430), (1015, 20242), (1682, 12215), (1745, 11774), (2030, 10121), (2443, 8410), (3490, 5887), (4205, 4886)]