18992896

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{439}}^1$

素因数の和:481

約数の個数: 54

約数和(自身を含む): 41145720

約数和(自身を除く): 22152824

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 256, 338, 416, 439, 676, 832, 878, 1352, 1664, 1756, 2704, 3328, 3512, 5408, 5707, 7024, 10816, 11414, 14048, 21632, 22828, 28096, 43264, 45656, 56192, 74191, 91312, 112384, 148382, 182624, 296764, 365248, 593528, 730496, 1187056, 1460992, 2374112, 4748224, 9496448, 18992896]

約数ペア:

[(1, 18992896), (2, 9496448), (4, 4748224), (8, 2374112), (13, 1460992), (16, 1187056), (26, 730496), (32, 593528), (52, 365248), (64, 296764), (104, 182624), (128, 148382), (169, 112384), (208, 91312), (256, 74191), (338, 56192), (416, 45656), (439, 43264), (676, 28096), (832, 22828), (878, 21632), (1352, 14048), (1664, 11414), (1756, 10816), (2704, 7024), (3328, 5707), (3512, 5408)]