19962368

素因数分解:

$2^9\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:452

約数の個数: 40

約数和(自身を含む): 40330752

約数和(自身を除く): 20368384

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 254, 256, 307, 508, 512, 614, 1016, 1228, 2032, 2456, 4064, 4912, 8128, 9824, 16256, 19648, 32512, 38989, 39296, 65024, 77978, 78592, 155956, 157184, 311912, 623824, 1247648, 2495296, 4990592, 9981184, 19962368]

約数ペア:

[(1, 19962368), (2, 9981184), (4, 4990592), (8, 2495296), (16, 1247648), (32, 623824), (64, 311912), (127, 157184), (128, 155956), (254, 78592), (256, 77978), (307, 65024), (508, 39296), (512, 38989), (614, 32512), (1016, 19648), (1228, 16256), (2032, 9824), (2456, 8128), (4064, 4912)]