20775075

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 36902400

約数和(自身を除く): 16127325

約数列:

[1, 3, 5, 15, 19, 25, 57, 61, 75, 95, 183, 239, 285, 305, 475, 717, 915, 1159, 1195, 1425, 1525, 3477, 3585, 4541, 4575, 5795, 5975, 13623, 14579, 17385, 17925, 22705, 28975, 43737, 68115, 72895, 86925, 113525, 218685, 277001, 340575, 364475, 831003, 1093425, 1385005, 4155015, 6925025, 20775075]

約数ペア:

[(1, 20775075), (3, 6925025), (5, 4155015), (15, 1385005), (19, 1093425), (25, 831003), (57, 364475), (61, 340575), (75, 277001), (95, 218685), (183, 113525), (239, 86925), (285, 72895), (305, 68115), (475, 43737), (717, 28975), (915, 22705), (1159, 17925), (1195, 17385), (1425, 14579), (1525, 13623), (3477, 5975), (3585, 5795), (4541, 4575)]