20568448

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 43488720

約数和(自身を除く): 22920272

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 64, 74, 86, 101, 128, 148, 172, 202, 296, 344, 404, 592, 688, 808, 1184, 1376, 1591, 1616, 2368, 2752, 3182, 3232, 3737, 4343, 4736, 5504, 6364, 6464, 7474, 8686, 12728, 12928, 14948, 17372, 25456, 29896, 34744, 50912, 59792, 69488, 101824, 119584, 138976, 160691, 203648, 239168, 277952, 321382, 478336, 555904, 642764, 1285528, 2571056, 5142112, 10284224, 20568448]

約数ペア:

[(1, 20568448), (2, 10284224), (4, 5142112), (8, 2571056), (16, 1285528), (32, 642764), (37, 555904), (43, 478336), (64, 321382), (74, 277952), (86, 239168), (101, 203648), (128, 160691), (148, 138976), (172, 119584), (202, 101824), (296, 69488), (344, 59792), (404, 50912), (592, 34744), (688, 29896), (808, 25456), (1184, 17372), (1376, 14948), (1591, 12928), (1616, 12728), (2368, 8686), (2752, 7474), (3182, 6464), (3232, 6364), (3737, 5504), (4343, 4736)]